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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.

A216868 Nicolas's sequence whose positivity is equivalent to the Riemann hypothesis.

Table of values

n a(n)
1 3
2 4
3 13
4 67
5 560
6 6095
7 87693
8 1491707
9 30942952
10 795721368
11 22614834943
12 759296069174
13 28510284114397
14 1148788714239052
15 50932190960133487
16 2532582753383324327
17 139681393339880282191
18 8089483267352888074399
19 512986500081861276401709
20 34658318003703434434962860

List of values

[3, 4, 13, 67, 560, 6095, 87693, 1491707, 30942952, 795721368, 22614834943, 759296069174, 28510284114397, 1148788714239052, 50932190960133487, 2532582753383324327, 139681393339880282191, 8089483267352888074399, 512986500081861276401709, 34658318003703434434962860]

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

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