# A174335 (b-file synthesized from sequence entry)
0 0
1 16
2 256
3 2592
4 24576
5 240000
6 2488320
7 27659520
8 330301440
9 4232632320
10 58060800000
11 850068172800
12 13243436236800
13 218892235161600
14 3827475696844800
15 70614415872000000
16 1371195958099968000