# A098540 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 17 4 81 5 561 6 5905 7 98673 8 2715025 9 126550129 10 10211715985 11 1450856148081 12 367849450783633 13 168250359224212593 14 140078954639877776273 15 213886080203739816320113 16 602782564524824650717471633