# A132621 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 9
4 76
5 1015
6 18996
7 461160
8 13810056
9 492785919
10 20433145960
11 966019244498
12 51307359002780
13 3025299547565555
14 196128997903654830
15 13867432141912978212
16 1062114397213146583512
17 87606299906342573320663