# A013394 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 90
4 3864
5 326214
6 40991676
7 7059334282
8 1612242903824
9 471247352116174
10 171640057469660548
11 76238487501368295026
12 40569187584659105627992
13 25481546086075766773695990