# A073399 (b-file synthesized from sequence entry)
0 1
1 9
2 30
3 63
4 531
5 1050
6 405
7 6165
8 29610
9 44520
10 2511
11 59454
12 502821
13 1789614
14 2245320
15 15309
16 517104
17 6686631
18 41182344
19 120133692
20 131891760
21 92583
22 4214349
23 76790673
24 714174327
25 3559509360
26 8966770308
27 8862693840