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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.

A348830 Denominator of relativistic sum w(2n) of the velocities v = 1/p^(2n) over all primes p, in units where the speed of light c = 1.

Table of values

n a(n)
1 7
2 13
3 703
4 14527
5 524354
6 3546333857
7 6785975897
8 30837755428255
9 26315372006162602624
10 261082967559450339374
11 5060595675665117852243
12 39265825923549359199986975497
13 123256266165246897346935034271
14 2125193947328394509208261354339475
15 7291398849693213195350018936947639700634973
16 2135676603454582708484868425511295057240283

List of values

[7, 13, 703, 14527, 524354, 3546333857, 6785975897, 30837755428255, 26315372006162602624, 261082967559450339374, 5060595675665117852243, 39265825923549359199986975497, 123256266165246897346935034271, 2125193947328394509208261354339475, 7291398849693213195350018936947639700634973, 2135676603454582708484868425511295057240283]

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

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