# A128884 (b-file synthesized from sequence entry) 1 1 2 5 3 23 4 144 5 1279 6 15035 7 219463 8 3816512 9 76928685 10 1762344781 11 45207853767 12 1283438430208 13 39944988007339 14 1352308628695895 15 49471532968242991 16 1944732944768690432 17 81748776383970349721 18 3659142661552743151353