# A009740 (b-file synthesized from sequence entry)
0 0
1 2
2 0
3 88
4 704
5 50464
6 2089216
7 173223040
8 16120801280
9 2032098365952
10 311227464130560
11 58380271774087168
12 13053338796582584320
13 3439281363674203889664
14 1053729213379599495528448