# A107511 (b-file synthesized from sequence entry)
0 1
1 480
2 43072
3 1535392
4 30171264
5 386224480
6 3568285888
7 25502776608
8 148192248064
9 726504898784
10 3090942003520
11 11666428964000
12 39751306125696
13 123999066493024
14 358175327721920
15 967087327771680
16 2459947867603456
17 5933762681602016
18 13648859698457152