A293402 - OEIS

A293402 as a simple table

n	a(n)
0	0
1	2
2	6
3	15
4	26
5	40
6	58
7	79
8	104
9	131
10	162
11	196
12	233
13	273
14	317
15	364
16	414
17	468
18	524
19	584
20	647
21	714
22	783
23	856
24	932
25	1011
26	1094
27	1180
28	1269
29	1361
30	1456
31	1555
32	1657
33	1762
34	1870
35	1982
36	2097
37	2215
38	2336
39	2461
40	2589

[0,2,6,15,26,40,58,79,104,131,162,196,233,273,317, 364,414,468,524,584,647,714,783,856,932,1011,1094, 1180,1269,1361,1456,1555,1657,1762,1870,1982,2097, 2215,2336,2461,2589]