# A105863 (b-file synthesized from sequence entry) 1 1 2 6 3 12 4 44 5 30 6 252 7 56 8 856 9 846 10 3080 11 132 12 20616 13 182 14 49532 15 52110 16 237232 17 306 18 1227096 19 380 20 4106320 21 2470272 22 15525092 23 552 24 86092176 25 1328900 26 270424752 27 126624006 28 1157002616 29 870 30 5577100260 31 992 32 19572325728 33 6386892930