# A122372 (b-file synthesized from sequence entry) 0 1 1 7 2 55 3 438 4 3498 5 27962 6 223604 7 1788406 8 14305102 9 114429193 10 915366442 11 7322521512 12 58577537621 13 468602617723 14 3748697751384 15 29988696932490 16 239903055854075 17 1919175464438065 18 15353030007717639 19 122821355074655309