A177239 - cp's OEIS frontend

A177239 Partial sums of round(n^2/20).

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	4
7	6
8	9
9	13
10	18
11	24
12	31
13	39
14	49
15	60
16	73
17	87
18	103
19	121
20	141
21	163
22	187
23	213
24	242
25	273
26	307
27	343
28	382
29	424
30	469
31	517
32	568
33	622
34	680
35	741
36	806
37	874
38	946
39	1022
40	1102
41	1186
42	1274
43	1366
44	1463
45	1564
46	1670
47	1780
48	1895
49	2015
50	2140

[0, 0, 0, 0, 1, 2, 4, 6, 9, 13, 18, 24, 31, 39, 49, 60, 73, 87, 103, 121, 141, 163, 187, 213, 242, 273, 307, 343, 382, 424, 469, 517, 568, 622, 680, 741, 806, 874, 946, 1022, 1102, 1186, 1274, 1366, 1463, 1564, 1670, 1780, 1895, 2015, 2140]

cp's OEIS Frontend

A177239 Partial sums of round(n^2/20).

Table of values

List of values