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.

A325236 Squarefree k such that phi(k)/k - 1/2 is positive and minimal for k with gpf(k) = prime(n).

Table of values

n a(n)
0 1
1 2
2 3
3 15
4 21
5 231
6 273
7 255
8 285
9 167739
10 56751695
11 7599867
12 3829070245
13 567641679
14 510795753
15 39169969059
16 704463969
17 3717740976339
18 42917990271
19 547701649495
20 45484457928390429
21 59701280265935165

List of values

[1, 2, 3, 15, 21, 231, 273, 255, 285, 167739, 56751695, 7599867, 3829070245, 567641679, 510795753, 39169969059, 704463969, 3717740976339, 42917990271, 547701649495, 45484457928390429, 59701280265935165]

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

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