A215147 - cp's OEIS frontend

A215147 For n odd, a(n) = 1^2+2^2+3^2+...+n^2; for n even, a(n) = (1^2+2^2+3^2+...+n^2)+1.

n	a(n)
1	1
2	2
3	5
4	6
5	14
6	15
7	30
8	31
9	55
10	56
11	91
12	92
13	140
14	141
15	204
16	205
17	285
18	286
19	385
20	386
21	506
22	507
23	650
24	651
25	819
26	820
27	1015
28	1016
29	1240
30	1241
31	1496
32	1497
33	1785
34	1786
35	2109
36	2110
37	2470
38	2471
39	2870
40	2871
41	3311
42	3312
43	3795
44	3796
45	4324
46	4325
47	4900
48	4901
49	5525
50	5526

[1, 2, 5, 6, 14, 15, 30, 31, 55, 56, 91, 92, 140, 141, 204, 205, 285, 286, 385, 386, 506, 507, 650, 651, 819, 820, 1015, 1016, 1240, 1241, 1496, 1497, 1785, 1786, 2109, 2110, 2470, 2471, 2870, 2871, 3311, 3312, 3795, 3796, 4324, 4325, 4900, 4901, 5525, 5526]

cp's OEIS Frontend

A215147 For n odd, a(n) = 1^2+2^2+3^2+...+n^2; for n even, a(n) = (1^2+2^2+3^2+...+n^2)+1.

Table of values

List of values