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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.

A367871 a(n) is the least prime q such that A367798(n)^2 is the sum of q and its reversal.

Table of values

n a(n)
1 2
2 29
3 20147
4 261104399
5 20870609999
6 2059108419947
7 2080783998959
8 200000140570007
9 206841324099959
10 261359249999999
11 20401390509044927
12 20421109564999967
13 20000105691609287
14 27180442947919997
15 20105039549690939
16 22040085159209699
17 24000605788991999
18 2008220921060899607
19 2008804724799599927

List of values

[2, 29, 20147, 261104399, 20870609999, 2059108419947, 2080783998959, 200000140570007, 206841324099959, 261359249999999, 20401390509044927, 20421109564999967, 20000105691609287, 27180442947919997, 20105039549690939, 22040085159209699, 24000605788991999, 2008220921060899607, 2008804724799599927]

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

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