# A247235 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 8
5 19
6 38
7 76
8 152
9 1800829
10 3601658
11 7203316
12 14406632
13 34215751
14 68431502
15 136863004
16 273726008
17 21350096865126907517
18 42700193730253815034
19 85400387460507630068
20 170800774921015260136
21 405651840437411242823
22 811303680874822485646
23 1622607361749644971292
24 3245214723499289942584
25 38447873587529623736931593
26 76895747175059247473863186
27 153791494350118494947726372
28 307582988700236989895452744
29 730509598163062851001700267
30 1461019196326125702003400534
31 2922038392652251404006801068
32 5844076785304502808013602136