# A151974 (b-file synthesized from sequence entry)
0 0
1 15
2 90
3 315
4 840
5 1890
6 3780
7 6930
8 11880
9 19305
10 30030
11 45045
12 65520
13 92820
14 128520
15 174420
16 232560
17 305235
18 395010
19 504735
20 637560
21 796950
22 986700
23 1210950
24 1474200
25 1781325
26 2137590
27 2548665
28 3020640
29 3560040
30 4173840
31 4869480
32 5654880
33 6538455
34 7529130