A284874 - cp's OEIS frontend

A284874 List of pairs (a,d) of coprime integers a>0, d>=0 such that a(a+d)(a+2*d) is a square, ordered by the squares.

n	a(n)
1	1
2	0
3	1
4	24
5	18
6	7
7	1
8	840
9	49
10	120
11	50
12	119
13	49
14	240
15	128
16	161
17	98
18	527
19	289
20	336
21	800
22	41
23	162
24	1519
25	288
26	1081
27	529
28	840
29	1
30	28560
31	49
32	5280
33	961
34	720
35	289
36	2520
37	242
38	3479
39	49
40	9360
41	512
42	3713
43	529
44	3696
45	1568
46	1241
47	338
48	6887
49	2401
50	1320
51	2178
52	2047

[1, 0, 1, 24, 18, 7, 1, 840, 49, 120, 50, 119, 49, 240, 128, 161, 98, 527, 289, 336, 800, 41, 162, 1519, 288, 1081, 529, 840, 1, 28560, 49, 5280, 961, 720, 289, 2520, 242, 3479, 49, 9360, 512, 3713, 529, 3696, 1568, 1241, 338, 6887, 2401, 1320, 2178, 2047]

cp's OEIS Frontend

A284874 List of pairs (a,d) of coprime integers a>0, d>=0 such that a(a+d)(a+2*d) is a square, ordered by the squares.

Table of values

List of values

cp's OEIS Frontend

A284874 List of pairs (a,d) of coprime integers a>0, d>=0 such that a*(a+d)*(a+2*d) is a square, ordered by the squares.

Table of values

List of values

A284874 List of pairs (a,d) of coprime integers a>0, d>=0 such that a(a+d)(a+2*d) is a square, ordered by the squares.