# A096971 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 13
4 49
5 181
6 685
7 2605
8 9988
9 38479
10 148879
11 577930
12 2249698
13 8777614
14 34315012
15 134377393
16 526994773
17 2069403898
18 8135377102
19 32014655626
20 126099239329
21 497083313908
22 1960943833567
23 7740893831005
24 30576064032568