# A074512 (b-file synthesized from sequence entry)
0 3
1 11
2 53
3 281
4 1553
5 8801
6 50753
7 296321
8 1745153
9 10339841
10 61514753
11 366991361
12 2193559553
13 13127802881
14 78632599553
15 471258726401
16 2825404874753
17 16943839313921
18 101628676145153
19 609634617917441