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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.

A091982 Nonprimes n such that Mod(n,4) == 1 and denominator(Fibonacci((n-1)/4)/n) = 1.

Table of values

n a(n)
1 1
2 4181
3 6721
4 13201
5 34561
6 51841
7 64681
8 90061
9 96049
10 97921
11 163081
12 186961
13 197209
14 268801
15 283361
16 302101
17 330929
18 399001
19 489601
20 520801
21 636641
22 655201
23 920577
24 999941
25 1034881
26 1072513
27 1081649
28 1084201
29 1106561
30 1317121
31 1346269
32 1392169
33 1533601

List of values

[1, 4181, 6721, 13201, 34561, 51841, 64681, 90061, 96049, 97921, 163081, 186961, 197209, 268801, 283361, 302101, 330929, 399001, 489601, 520801, 636641, 655201, 920577, 999941, 1034881, 1072513, 1081649, 1084201, 1106561, 1317121, 1346269, 1392169, 1533601]

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

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