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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.

A180320 AbsoluteValue(Numerator(Bernoulli(4n))) - Numerator(Bernoulli(4n)) mod denominator(Bernoulli(4n)) divided by two.

Table of values

n a(n)
0 0
1 1
2 1
3 691
4 47
5 41
6 691
7 59
8 47
9 638653
10 2011
11 53
12 14477
13 83
14 59
15 22298681
16 47
17 1
18 48540859
19 1
20 47717
21 1058237
22 5407
23 77
24 1450679
25 4471
26 83
27 71532367
28 226439
29 89
30 971032651
31 1
32 47
33 1310531
34 167
35 117419
36 965295473
37 179
38 1
39 522242099
40 47717
41 113

List of values

[0, 1, 1, 691, 47, 41, 691, 59, 47, 638653, 2011, 53, 14477, 83, 59, 22298681, 47, 1, 48540859, 1, 47717, 1058237, 5407, 77, 1450679, 4471, 83, 71532367, 226439, 89, 971032651, 1, 47, 1310531, 167, 117419, 965295473, 179, 1, 522242099, 47717, 113]

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

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