A173690 - cp's OEIS frontend

A173690 Partial sums of round(n^2/5).

n	a(n)
0	0
1	0
2	1
3	3
4	6
5	11
6	18
7	28
8	41
9	57
10	77
11	101
12	130
13	164
14	203
15	248
16	299
17	357
18	422
19	494
20	574
21	662
22	759
23	865
24	980
25	1105
26	1240
27	1386
28	1543
29	1711
30	1891
31	2083
32	2288
33	2506
34	2737
35	2982
36	3241
37	3515
38	3804
39	4108
40	4428
41	4764
42	5117
43	5487
44	5874
45	6279
46	6702
47	7144
48	7605
49	8085
50	8585

[0, 0, 1, 3, 6, 11, 18, 28, 41, 57, 77, 101, 130, 164, 203, 248, 299, 357, 422, 494, 574, 662, 759, 865, 980, 1105, 1240, 1386, 1543, 1711, 1891, 2083, 2288, 2506, 2737, 2982, 3241, 3515, 3804, 4108, 4428, 4764, 5117, 5487, 5874, 6279, 6702, 7144, 7605, 8085, 8585]

cp's OEIS Frontend

A173690 Partial sums of round(n^2/5).

Table of values

List of values