# A134135 (b-file synthesized from sequence entry)
1 1
2 1
3 5
4 15
5 93
6 551
7 4129
8 33607
9 312929
10 3179343
11 35602881
12 432201743
13 5678740945
14 80142780751
15 1210609725905
16 19481112885231
17 332836223507793
18 6016678424942063
19 114746996449871761
20 2302527084416470255