# A087946 (b-file synthesized from sequence entry)
0 1
1 3
2 10
3 35
4 126
5 461
6 1702
7 6315
8 23494
9 87533
10 326382
11 1217483
12 4542526
13 16950573
14 63255670
15 236063915
16 880983606
17 3287837741
18 12270301822
19 45793238475
20 170902389934
21 637815796973
22 2380359749382
23 8883621103403