# A271495 (b-file synthesized from sequence entry)
0 1
1 70
2 668
3 14104
4 198640
5 3420256
6 53143488
7 864838016
8 13714054912
9 220102985216
10 3513567575040
11 56284226394112
12 900460612808704
13 14414430456537088
14 230619566685274112
15 3689872453256970240
16 59031392914560188416
17 944463240632040030208
18 15111217402853747064832