# A151457 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 26
5 86
6 302
7 1091
8 4040
9 15271
10 58626
11 228160
12 897769
13 3566851
14 14287540
15 57643690
16 234033415
17 955486006
18 3920368468
19 16157046284
20 66855815475
21 277647691670
22 1156870017745
23 4834889174037
24 20262414041885
25 85133911519652
26 358538436730899
27 1513264706135320
28 6399889659608629