# A261584 (b-file synthesized from sequence entry)
0 1
1 4
2 12
3 36
4 92
5 228
6 540
7 1236
8 2748
9 6004
10 12876
11 27252
12 57036
13 118308
14 243564
15 498564
16 1015484
17 2060484
18 4167804
19 8409588
20 16934748
21 34049940
22 68378220
23 137185428
24 275026476
25 551052676
26 1103618508
27 2209525092
28 4422484764
29 8850120420
30 17707920924