# A107523 (b-file synthesized from sequence entry)
0 1
1 1512
2 407792
3 43300152
4 2483540192
5 90082948872
6 2275573978832
7 42758452212312
8 627083562564032
9 7446552274621992
10 73703518023284912
11 622405155651823992
12 4571376289377014432
13 29672531569958345544
14 172523264372938765968
15 908873210563919696536