# A036918 (b-file synthesized from sequence entry)
1 0
2 2
3 10
4 48
5 260
6 1630
7 11742
8 95900
9 876808
10 8877690
11 98641010
12 1193556232
13 15624736140
14 220048367318
15 3317652307270
16 53319412081140
17 909984632851472
18 16436597430879730
19 313262209859119578
20 6282647653285676000
21 132266266384961600020
22 2916471173788403280462