# A057718 (b-file synthesized from sequence entry)
1 1
2 11
3 136
4 1787
5 24376
6 341048
7 4859968
8 70223483
9 1025790616
10 15116164136
11 224365547968
12 3350371999928
13 50287277411008
14 758124098549696
15 11473331826459136
16 174221578556572283
17 2653437885092286808
18 40520013896165905928