# A151381 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 4
5 8
6 18
7 41
8 97
9 236
10 584
11 1474
12 3770
13 9767
14 25575
15 67592
16 180128
17 483502
18 1306308
19 3549830
20 9697162
21 26615698
22 73366980
23 203034787
24 563901485
25 1571351150
26 4392057592
27 12310850747
28 34597448119
29 97466655175
30 275202241799
31 778693720420
32 2207705622668
33 6270783269882
34 17842662379410