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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.

A077021 a(n) is the unique odd positive solution y of 2^n = 7x^2 + y^2.

Table of values

n a(n)
3 1
4 3
5 5
6 1
7 11
8 9
9 13
10 31
11 5
12 57
13 67
14 47
15 181
16 87
17 275
18 449
19 101
20 999
21 797
22 1201
23 2795
24 393
25 5197
26 5983
27 4411
28 16377
29 7555
30 25199
31 40309
32 10089
33 90707
34 70529
35 110885
36 251943
37 30173
38 473713
39 534059
40 413367
41 1481485
42 654751
43 2308219
44 3617721

List of values

[1, 3, 5, 1, 11, 9, 13, 31, 5, 57, 67, 47, 181, 87, 275, 449, 101, 999, 797, 1201, 2795, 393, 5197, 5983, 4411, 16377, 7555, 25199, 40309, 10089, 90707, 70529, 110885, 251943, 30173, 473713, 534059, 413367, 1481485, 654751, 2308219, 3617721]

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

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