# A061978 (b-file synthesized from sequence entry)
1 1
2 3
3 9
4 21
5 33
6 57
7 96
8 864
9 1033
10 1661
11 6449
12 6624
13 10464
14 68249
15 81664
16 108981
17 164384
18 167571
19 234311
20 2420409
21 5490464