A051925 - OEIS

A051925 as a simple table

n	a(n)
0	0
1	0
2	3
3	11
4	26
5	50
6	85
7	133
8	196
9	276
10	375
11	495
12	638
13	806
14	1001
15	1225
16	1480
17	1768
18	2091
19	2451
20	2850
21	3290
22	3773
23	4301
24	4876
25	5500
26	6175
27	6903
28	7686
29	8526
30	9425
31	10385
32	11408
33	12496
34	13651
35	14875
36	16170
37	17538
38	18981
39	20501
40	22100
41	23780

[0,0,3,11,26,50,85,133,196,276,375,495,638,806, 1001,1225,1480,1768,2091,2451,2850,3290,3773,4301, 4876,5500,6175,6903,7686,8526,9425,10385,11408, 12496,13651,14875,16170,17538,18981,20501,22100, 23780]