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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A275795 The x members of the positive proper solutions (x = x2(n), y = y2(n)) of the second class for the Pell equation x^2 - 2*y^2 = +7^2.

Table of values

n a(n)
0 11
1 57
2 331
3 1929
4 11243
5 65529
6 381931
7 2226057
8 12974411
9 75620409
10 440748043
11 2568867849
12 14972459051
13 87265886457
14 508622859691
15 2964471271689
16 17278204770443
17 100704757350969
18 586950339335371
19 3420997278661257
20 19939033332632171
21 116213202717131769

List of values

[11, 57, 331, 1929, 11243, 65529, 381931, 2226057, 12974411, 75620409, 440748043, 2568867849, 14972459051, 87265886457, 508622859691, 2964471271689, 17278204770443, 100704757350969, 586950339335371, 3420997278661257, 19939033332632171, 116213202717131769]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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