A116365 - OEIS

A116365 as a simple table

n	a(n)
1	0
2	1
3	3
4	6
5	11
6	20
7	33
8	56
9	86
10	136
11	200
12	301
13	429
14	621
15	868
16	1219
17	1669
18	2297
19	3091
20	4171
21	5542
22	7357
23	9648
24	12652
25	16402
26	21250
27	27298
28	35003
29	44556
30	56637
31	71515
32	90160
33	113046
34	141464
35	176189
36	219053
37	271149
38	335044
39	412447
40	506787
41	620597

[0,1,3,6,11,20,33,56,86,136,200,301,429,621,868, 1219,1669,2297,3091,4171,5542,7357,9648,12652, 16402,21250,27298,35003,44556,56637,71515,90160, 113046,141464,176189,219053,271149,335044,412447, 506787,620597]