# A087955 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 8
4 12
5 34
6 62
7 152
8 304
9 698
10 1458
11 3248
12 6924
13 15210
14 32734
15 71440
16 154432
17 336018
18 727874
19 1581496
20 3429100
21 7445714
22 16151518
23 35059560
24 76068400
25 165095562
26 358241202
27 777459488
28 1687087532
29 3661224794
30 7945027902