# A024957 (b-file synthesized from sequence entry)
1 2
2 1
3 1
4 2
5 4
6 9
7 20
8 44
9 97
10 230
11 540
12 1257
13 2920
14 7168
15 17393
16 41806
17 100408
18 250098
19 618124
20 1517008
21 3716627
22 9375710
23 23479016
24 58419236
25 145210076
26 368786352
27 931600246
28 2341625080
29 5877503872
30 15027036202
31 38225273720
32 96794415372