cp's OEIS Frontend

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.

A252040 Least number k such that the sum of the n-th powers of divisors of k is prime, or 0 if there is no such k.

Table of values

n a(n)
1 2
2 2
3 4
4 2
5 3418801
6 0
7 64
8 2
9 4
10 0
11 21611482313284249
12 0
13 38580382095460899155325996786287338133521
14 0
15 0
16 2
17 2908327322588596409721563830760333292497745890881
18 0
19 366742604046618684582110328334808145525757868881
20 0
21 0
22 0
23 264638735999480827156185738343112840094453729311824181089

List of values

[2, 2, 4, 2, 3418801, 0, 64, 2, 4, 0, 21611482313284249, 0, 38580382095460899155325996786287338133521, 0, 0, 2, 2908327322588596409721563830760333292497745890881, 0, 366742604046618684582110328334808145525757868881, 0, 0, 0, 264638735999480827156185738343112840094453729311824181089]

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

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