# A361710 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 -8
4 15
5 126
6 -280
7 -2400
8 5775
9 50050
10 -126126
11 -1100736
12 2858856
13 25069968
14 -66512160
15 -585307008
16 1577585295
17 13919870250
18 -37978905250
19 -335813478000
20 925166131890
21 8194328596740
22 -22754499243840
23 -201822515032320
24 564121960420200
25 5009403008531376