# A129064 (b-file synthesized from sequence entry)
0 1
1 12
2 120
3 1230
4 13650
5 166376
6 2229444
7 32724810
8 523531470
9 9080409492
10 169892449584
11 3412891866566
12 73300097535210
13 1676670468061920
14 40704197313912060
15 1045464783485987298
16 28328001168991093350