# A149954 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 51
5 183
6 690
7 2682
8 10670
9 43382
10 179340
11 751275
12 3185546
13 13642912
14 58921366
15 256410415
16 1123212708
17 4948563894
18 21915734848
19 97510901672
20 435664551650
21 1953868774888
22 8792948449585
23 39694632400311
24 179712099904466
25 815778108625849
26 3712134727042828
27 16929890648022797