# A253013 (b-file synthesized from sequence entry)
1 0
2 0
3 1
4 2
5 5
6 10
7 24
8 57
9 144
10 360
11 923
12 2382
13 6246
14 16486
15 43917
16 117692
17 317447
18 860574
19 2344396
20 6413119
21 17611086
22 48527597
23 134141819
24 371862485
25 1033588413
26 2879818379
27 8041870070
28 22503533295
29 63093284667
30 177213424466