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.

A322434 Numbers k that are the numerator of a harmonic number such that k is divisible by the square of a prime >= 5.

Table of values

n a(n)
1 25
2 49
3 363
4 7381
5 86021
6 2436559
7 14274301
8 19093197
9 315404588903
10 9227046511387
11 9304682830147
12 54801925434709
13 2078178381193813
14 12309312989335019
15 5943339269060627227
16 14063600165435720745359
17 254381445831833111660789
18 15117092380124150817026911

List of values

[25, 49, 363, 7381, 86021, 2436559, 14274301, 19093197, 315404588903, 9227046511387, 9304682830147, 54801925434709, 2078178381193813, 12309312989335019, 5943339269060627227, 14063600165435720745359, 254381445831833111660789, 15117092380124150817026911]

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

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