# A293309 (b-file synthesized from sequence entry)
0 1
1 123
2 3281
3 39175
4 286555
5 1508401
6 6271378
7 21836366
8 66220705
9 179784715
10 445824731
11 1025102013
12 2211041131
13 4514532465
14 8789910980
15 16416797116
16 29556115153
17 51502789451
18 87162399205
19 143684487475
20 231291309931
21 364347612673
22 562724586326