# A149164 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 40
5 119
6 547
7 1853
8 8660
9 31519
10 149037
11 568401
12 2710708
13 10688967
14 51292180
15 207333529
16 999662616
17 4118904097
18 19934948055
19 83399651303
20 404890953262
21 1715089952957
22 8347765182386
23 35727736510393
24 174270194092570
25 752395213601045
26 3676723076166319
27 15992803135093301