A160372 - cp's OEIS frontend

A160372 The 4-tuple (2, ((2n+1)^2-1)/2, ((2n+3)^2-1)/2, a(n)), where a(n) = 4*(3 + 20n + 42n^2 + 32n^3 + 8n^4), has Diophantus's property that the product of any two distinct terms plus one is a square.

n	a(n)
1	420
2	2380
3	7812
4	19404
5	40612
6	75660
7	129540
8	208012
9	317604
10	465612
11	660100
12	909900
13	1224612
14	1614604
15	2091012
16	2665740
17	3351460
18	4161612
19	5110404
20	6212812
21	7484580
22	8942220
23	10603012
24	12485004
25	14607012
26	16988620
27	19650180
28	22612812
29	25898404
30	29529612
31	33529860

[420, 2380, 7812, 19404, 40612, 75660, 129540, 208012, 317604, 465612, 660100, 909900, 1224612, 1614604, 2091012, 2665740, 3351460, 4161612, 5110404, 6212812, 7484580, 8942220, 10603012, 12485004, 14607012, 16988620, 19650180, 22612812, 25898404, 29529612, 33529860]

cp's OEIS Frontend

A160372 The 4-tuple (2, ((2n+1)^2-1)/2, ((2n+3)^2-1)/2, a(n)), where a(n) = 4*(3 + 20n + 42n^2 + 32n^3 + 8n^4), has Diophantus's property that the product of any two distinct terms plus one is a square.

Table of values

List of values

cp's OEIS Frontend

A160372 The 4-tuple (2, ((2*n+1)^2-1)/2, ((2*n+3)^2-1)/2, a(n)), where a(n) = 4*(3 + 20n + 42n^2 + 32n^3 + 8n^4), has Diophantus's property that the product of any two distinct terms plus one is a square.

Table of values

List of values

A160372 The 4-tuple (2, ((2n+1)^2-1)/2, ((2n+3)^2-1)/2, a(n)), where a(n) = 4*(3 + 20n + 42n^2 + 32n^3 + 8n^4), has Diophantus's property that the product of any two distinct terms plus one is a square.