# A107563 (b-file synthesized from sequence entry)
0 1
1 1800
2 573680
3 71932472
4 4860312480
5 206974448552
6 6113629425680
7 133729976583000
8 2272306096926272
9 31109164150270280
10 353210385830106672
11 3404471043701699960
12 28398836335943882720
13 208343374455549585384
14 1362708897939788829520
15 8039392279542475239576