A166259 - cp's OEIS frontend

A166259 Positive integers n such that a centered polygonal number nk(k+1)/2+1 is not a square for any k > 0.

n	a(n)
1	2
2	18
3	32
4	50
5	72
6	98
7	128
8	162
9	200
10	242
11	338
12	392
13	450
14	512
15	578
16	648
17	722
18	882
19	968
20	1058
21	1152
22	1250
23	1352
24	1458
25	1682
26	1800
27	1922
28	2048
29	2178
30	2312
31	2401
32	2450
33	2662
34	2738
35	2809
36	2888
37	3042
38	3174
39	3200
40	3362
41	3528
42	3698
43	3750
44	4050
45	4225
46	4232
47	4418
48	4489
49	4608
50	4802

[2, 18, 32, 50, 72, 98, 128, 162, 200, 242, 338, 392, 450, 512, 578, 648, 722, 882, 968, 1058, 1152, 1250, 1352, 1458, 1682, 1800, 1922, 2048, 2178, 2312, 2401, 2450, 2662, 2738, 2809, 2888, 3042, 3174, 3200, 3362, 3528, 3698, 3750, 4050, 4225, 4232, 4418, 4489, 4608, 4802]

cp's OEIS Frontend

A166259 Positive integers n such that a centered polygonal number nk(k+1)/2+1 is not a square for any k > 0.

Table of values

List of values

cp's OEIS Frontend

A166259 Positive integers n such that a centered polygonal number n*k*(k+1)/2+1 is not a square for any k > 0.

Table of values

List of values

A166259 Positive integers n such that a centered polygonal number nk(k+1)/2+1 is not a square for any k > 0.