# A020767 (b-file synthesized from sequence entry)
0 1
1 1
2 10
3 110
4 11000
5 1111000
6 122210000
7 13565310000
8 13565310000000
9 13578875310000000
10 13714664063100000000
11 13865525367794100000000
12 15252077904573510000000000
13 16792537772935434510000000000
14 18639716927958332306100000000000
15 20708725506961707192077100000000000