# A015640 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 0
5 1
6 6
7 21
8 56
9 126
10 251
11 461
12 786
13 1281
14 1981
15 2981
16 4311
17 6131
18 8436
19 11496
20 15246
21 20076
22 25851
23 33166
24 41656
25 52281
26 64436
27 79316
28 96151
29 116626
30 139246
31 166651
32 196751
33 232501
34 271601
35 317961
36 367616
37 426521
38 489506