# A171853 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 3
5 8
6 20
7 49
8 119
9 291
10 715
11 1768
12 4396
13 10983
14 27551
15 69351
16 175081
17 443119
18 1123963
19 2856383
20 7271377
21 18538391
22 47327615
23 120972510
24 309555666
25 792917565
26 2032905981
27 5216436109
28 13395813003
29 34425270629
30 88527064337