A094553 - cp's OEIS frontend

A094553 Numbers n such that there are integers a < b with a^2+(a+1)^2+...+(n-1)^2 = n^2+(n+1)^2+...+b^2.

n	a(n)
1	5
2	13
3	25
4	35
5	39
6	41
7	51
8	61
9	85
10	111
11	113
12	143
13	145
14	160
15	181
16	221
17	265
18	313
19	365
20	421
21	481
22	545
23	613
24	685
25	761
26	841
27	856
28	925
29	1013
30	1105
31	1201
32	1301
33	1405
34	1513
35	1625
36	1741
37	1861
38	1985
39	2113
40	2245
41	2251
42	2381
43	2471
44	2521
45	2611
46	2665
47	2813
48	2965
49	3031

[5, 13, 25, 35, 39, 41, 51, 61, 85, 111, 113, 143, 145, 160, 181, 221, 265, 313, 365, 421, 481, 545, 613, 685, 761, 841, 856, 925, 1013, 1105, 1201, 1301, 1405, 1513, 1625, 1741, 1861, 1985, 2113, 2245, 2251, 2381, 2471, 2521, 2611, 2665, 2813, 2965, 3031]

cp's OEIS Frontend

A094553 Numbers n such that there are integers a < b with a^2+(a+1)^2+...+(n-1)^2 = n^2+(n+1)^2+...+b^2.

Table of values

List of values