# A292367 (b-file synthesized from sequence entry)
1 561
2 1729
3 41041
4 1615681
5 14676481
6 40622401
7 173085121
8 367804801
9 631071001
10 8494657921
11 138399075361
12 432081216001
13 997803878401
14 3837165696001
15 7599525373441
16 42182344790209
17 65032633451521
18 186137387251201
19 329797704600001
20 2523853463040001