# A185625 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 6 4 18 5 79 6 463 7 3396 8 30073 9 314037 10 3796561 11 52332869 12 812013163 13 14029926801 14 267461387125 15 5581705418715 16 126657160962835 17 3106644875467396 18 81943115662983569 19 2313753122033185373 20 69654973411269008826 21 2227679407193350385775