# A011855 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 1
11 6
12 24
13 79
14 222
15 556
16 1271
17 2701
18 5402
19 10264
20 18662
21 32658
22 55268
23 90798
24 145278
25 226997
26 347172
27 520758
28 767433
29 1112778
30 1589683
31 2240008
32 3116533
33 4285233
34 5827917
35 7845273