# A076551 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 66
4 210
5 3570
6 103740
7 930930
8 56812470
9 1722580860
10 32395433070
11 265257422430
12 91348974206490
13 8923863379851420
14 330196858581850260
15 14193386885746698630
16 2378522762792139793830
17 351206814022419685159830
18 28791787439593010836313310