# A046910 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 25
5 1321
6 70201
7 4542721
8 384969649
9 44087846545
10 6926924885881
11 1503058888234201
12 451117640363382697
13 186980881340749198561
14 106678398214255092939169
15 83440038893764124092029601
16 89093417035281194970121062073
17 129323858612953057624127147727913
18 254190262374139251098507525465587609