A189356 - cp's OEIS frontend

A189356 a(n) gives y-values solving the Diophantine equation 2*x^2 + (x-1)^2 = y^2 for positive x.

n	a(n)
1	3
2	41
3	571
4	7953
5	110771
6	1542841
7	21489003
8	299303201
9	4168755811
10	58063278153
11	808717138331
12	11263976658481
13	156886956080403
14	2185153408467161
15	30435260762459851
16	423908497265970753
17	5904283700961130691
18	82236063316189858921
19	1145400602725696894203

[3, 41, 571, 7953, 110771, 1542841, 21489003, 299303201, 4168755811, 58063278153, 808717138331, 11263976658481, 156886956080403, 2185153408467161, 30435260762459851, 423908497265970753, 5904283700961130691, 82236063316189858921, 1145400602725696894203]

cp's OEIS Frontend

A189356 a(n) gives y-values solving the Diophantine equation 2*x^2 + (x-1)^2 = y^2 for positive x.

Table of values

List of values