# A151319 (b-file synthesized from sequence entry)
0 1
1 3
2 13
3 57
4 263
5 1233
6 5869
7 28201
8 136471
9 664031
10 3244373
11 15904999
12 78180131
13 385141745
14 1900808447
15 9395586359
16 46502309921
17 230413447773
18 1142763706389
19 5672369968137
20 28176421469243
21 140049400473211
22 696494762630355
23 3465512981413485
24 17250679866579039
25 85903957507564797