# A274860 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 8
5 16
6 32
7 68
8 144
9 304
10 692
11 1580
12 3602
13 8976
14 22552
15 56850
16 157740
17 442101
18 1249124
19 3868420
20 12082568
21 38117838
22 130394944
23 448733361
24 1559590892
25 5817284716
26 21787658638
27 82365982741
28 331668252301
29 1339477442569
30 5457855667219
31 23555837192320