# A215514 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 3
4 0
5 -10
6 90
7 112
8 -1680
9 5112
10 52920
11 -328504
12 -1255320
13 23508784
14 14510496
15 -1763573160
16 4091068800
17 159016114496
18 -879390741312
19 -16959317684096
20 164322768835200
21 2137075591340928
22 -32790836323453824
23 -310912999830134272
24 7354887176447775360