# A150297 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 23 4 96 5 412 6 1819 7 8165 8 37244 9 172041 10 802068 11 3766707 12 17797247 13 84512353 14 403062511 15 1929377961 16 9264898815 17 44613567669 18 215353482998 19 1041777792180 20 5049322884229 21 24515402802290 22 119211717497632 23 580509003433142 24 2830439159149030 25 13816713360019538 26 67517940619384443