A118375 - OEIS

A118375 as a simple table

n	a(n)
1	1
2	5
3	11
4	20
5	35
6	57
7	85
8	120
9	165
10	221
11	287
12	364
13	455
14	561
15	681
16	816
17	969
18	1141
19	1331
20	1540
21	1771
22	2025
23	2301
24	2600
25	2925
26	3277
27	3655
28	4060
29	4495
30	4961
31	5457
32	5984
33	6545
34	7141
35	7771
36	8436
37	9139
38	9881
39	10661
40	11480
41	12341
42	13245
43	14191
44	15180
45	16215

[1,5,11,20,35,57,85,120,165,221,287,364,455,561, 681,816,969,1141,1331,1540,1771,2025,2301,2600, 2925,3277,3655,4060,4495,4961,5457,5984,6545,7141, 7771,8436,9139,9881,10661,11480,12341,13245,14191, 15180,16215]