# A302606 (b-file synthesized from sequence entry)
0 0
1 1
2 4
3 26
4 240
5 2884
6 42660
7 748544
8 15185856
9 349574544
10 9000902500
11 256293989984
12 7996078704240
13 271246034903232
14 9939835626507332
15 391303051339622400
16 16469438021801262848
17 737992773619777599744
18 35077254665501330210628
19 1762671472887447792620032