# A125369 (b-file synthesized from sequence entry) 0 1 1 32 2 268 3 1772 4 13748 5 108132 6 871228 7 7113068 8 58698164 9 488329172 10 4089121128 11 34423417280 12 291070095356 13 2470369205804 14 21033518369320 15 179580640999392 16 1536920470892852 17 13181385142142708 18 113261618364481612