# A171879 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 1
4 1
5 1
6 3
7 5
8 9
9 25
10 73
11 313
12 3263
13 1502337
14 278472902914281
15 11984387434132924341157279996736444304839056033321