# A201968 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 33
5 157
6 1077
7 12562
8 276361
9 12023304
10 1019341931
11 165104554019
12 50503104222056
13 29054325051128443
14 31426537149908636858
15 64001044963441537716700
16 245935895697060179316310623
17 1787577789272803153324620542087
18 24637809499317378365431171138790458