A227168 - cp's OEIS frontend

A227168 a(n) = gcd(2n, n(n+1)/2)^2.

n	a(n)
1	1
2	1
3	36
4	4
5	25
6	9
7	196
8	16
9	81
10	25
11	484
12	36
13	169
14	49
15	900
16	64
17	289
18	81
19	1444
20	100
21	441
22	121
23	2116
24	144
25	625
26	169
27	2916
28	196
29	841
30	225
31	3844
32	256
33	1089
34	289
35	4900
36	324
37	1369
38	361
39	6084
40	400

[1, 1, 36, 4, 25, 9, 196, 16, 81, 25, 484, 36, 169, 49, 900, 64, 289, 81, 1444, 100, 441, 121, 2116, 144, 625, 169, 2916, 196, 841, 225, 3844, 256, 1089, 289, 4900, 324, 1369, 361, 6084, 400]

cp's OEIS Frontend

A227168 a(n) = gcd(2n, n(n+1)/2)^2.

Table of values

List of values

cp's OEIS Frontend

A227168 a(n) = gcd(2*n, n*(n+1)/2)^2.

Table of values

List of values

A227168 a(n) = gcd(2n, n(n+1)/2)^2.