# A144133 (b-file synthesized from sequence entry) 0 1 1 12 2 106 3 828 4 6051 5 42408 6 288788 7 1925736 8 12637733 9 81897876 10 525360702 11 3341936196 12 21109664455 13 132544828560 14 827948567080 15 5148653356944 16 31891223012553 17 196848686563164 18 1211273655997202 19 7432579805359884