# A356280 (b-file synthesized from sequence entry) 0 1 1 3 2 12 3 50 4 211 5 894 6 3791 7 16068 8 68032 9 287675 10 1214761 11 5122428 12 21571028 13 90718913 14 381050570 15 1598645263 16 6699355413 17 28044720813 18 117281866330 19 489999068614 20 2045341248508 21 8530263939665 22 35547083083270 23 148015639243691 24 615870619714675 25 2560734764460360