# A047923 (b-file synthesized from sequence entry)
0 1
1 6
2 29
3 97
4 343
5 1131
6 3338
7 10336
8 29644
9 88555
10 260497
11 728358
12 2103284
13 6020698
14 16594432
15 46969365
16 128670281
17 361020986
18 1008411198
19 2742388946
20 7613161908
21 20632925370
22 56988914979
23 156977658446
24 423559114311