# A290906 (b-file synthesized from sequence entry)
0 0
1 3
2 12
3 39
4 132
5 456
6 1572
7 5409
8 18612
9 64053
10 220440
11 758640
12 2610840
13 8985147
14 30922188
15 106418031
16 366235308
17 1260390744
18 4337606988
19 14927778921
20 51373622388
21 176801189997
22 608457401520
23 2093992746720
24 7206429919920
25 24800769855603
26 85351303248012