# A363781 (b-file synthesized from sequence entry)
0 1
1 -1
2 3
3 -10
4 35
5 -126
6 462
7 -1716
8 6427
9 -24220
10 91718
11 -348712
12 1330238
13 -5088916
14 19515660
15 -75000600
16 288772795
17 -1113688667
18 4301387580
19 -16635049690
20 64410064110
21 -249659926890
22 968651123520
23 -3761601535620
24 14619516646150
25 -56861702382576