# A120492 (b-file synthesized from sequence entry)
1 2
2 6
3 39
4 504
5 17765
6 552552
7 30870007
8 1387350084
9 103306557609
10 16762578985600
11 1290073179870299
12 216632259853089564
13 30312656885388018973
14 2922170957243151047352
15 378560698729260507690687