A055780 - OEIS

A055780 as a simple table

n	a(n)
0	1
1	7
2	14
3	35
4	57
5	98
6	140
7	210
8	281
9	385
10	490
11	637
12	785
13	980
14	1176
15	1428
16	1681
17	1995
18	2310
19	2695
20	3081
21	3542
22	4004
23	4550
24	5097
25	5733
26	6370
27	7105
28	7841
29	8680
30	9520
31	10472
32	11425
33	12495
34	13566
35	14763
36	15961
37	17290
38	18620
39	20090
40	21561
41	23177
42	24794
43	26565

[1,7,14,35,57,98,140,210,281,385,490,637,785,980, 1176,1428,1681,1995,2310,2695,3081,3542,4004,4550, 5097,5733,6370,7105,7841,8680,9520,10472,11425, 12495,13566,14763,15961,17290,18620,20090,21561, 23177,24794,26565]

[1,7,14,35,57,98,140,210,281,385,490,637,785,980,
 1176,1428,1681,1995,2310,2695,3081,3542,4004,4550,
 5097,5733,6370,7105,7841,8680,9520,10472,11425,
 12495,13566,14763,15961,17290,18620,20090,21561,
 23177,24794,26565]