# A000843 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 1
6 4
7 12
8 66
9 433
10 3442
11 30404
12 294951
13 3093770
14 34846185
15 419020738
16 5355289843
17 72466668921
18 1034818990771
19 15548633703424
20 245182764121059
21 4047990858838185
22 69826392559499108
23 1256005988628521464
24 23517396850332614602
25 457623646061902648705