# A026033 (b-file synthesized from sequence entry) 0 1 1 4 2 28 3 220 4 1819 5 15484 6 134320 7 1180764 8 10482340 9 93766288 10 843822148 11 7631018564 12 69291185474 13 631334484200 14 5769124912320 15 52851389067420 16 485242722376524 17 4463782855666480 18 41133265444555120