# A054387 (b-file synthesized from sequence entry) 0 0 1 -2 2 1 3 1 4 1 5 5 6 7 7 7 8 33 9 429 10 715 11 2431 12 4199 13 29393 14 52003 15 185725 16 111435 17 1938969 18 17678835 19 21607465 20 119409675 21 883631595 22 109402007 23 6116566755 24 11435320455 25 57176602275 26 322476036831 27 1215486600363 28 2295919134019