# A067413 (b-file synthesized from sequence entry)
0 1
1 7
2 84
3 1008
4 12096
5 145152
6 1741824
7 20901888
8 250822656
9 3009871872
10 36118462464
11 433421549568
12 5201058594816
13 62412703137792
14 748952437653504
15 8987429251842048
16 107849151022104576
17 1294189812265254912