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.

A226448 Composite squarefree numbers k such that the ratios (k - 1/2)/(p - 1/2) are integers for each prime p dividing k.

Table of values

n a(n)
1 260054438
2 597892523
3 1200695738
4 3287998643
5 3423456563
6 10524308498
7 13292859563
8 15646705718
9 19441707170
10 33309521438
11 38848586123
12 43312628678
13 61899936935
14 72422400713
15 75439031063
16 85338414662
17 112419230963
18 132624705038
19 136084511063
20 141236121758

List of values

[260054438, 597892523, 1200695738, 3287998643, 3423456563, 10524308498, 13292859563, 15646705718, 19441707170, 33309521438, 38848586123, 43312628678, 61899936935, 72422400713, 75439031063, 85338414662, 112419230963, 132624705038, 136084511063, 141236121758]

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

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