# A247298 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 8
5 17
6 36
7 80
8 180
9 410
10 946
11 2203
12 5173
13 12233
14 29108
15 69643
16 167437
17 404311
18 980125
19 2384441
20 5819576
21 14245384
22 34964611
23 86032272
24 212172668
25 524371704
26 1298509438
27 3221425567
28 8005623916
29 19926840746
30 49674610998
31 124006308008