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.

A087978 a(n) is the first term in a chain of at least n consecutive numbers, each having exactly m = 5 distinct prime factors.

Table of values

n a(n)
1 2310
2 254540
3 1042404
4 21871365
5 129963314
6 830692265
7 4617927894
8 18297409143
9 41268813542
10 287980277114
11 1182325618032
12 6455097761454
13 14207465691240
14 54049709480208
15 90987640183352
16 546525829796442
17 546525829796442

List of values

[2310, 254540, 1042404, 21871365, 129963314, 830692265, 4617927894, 18297409143, 41268813542, 287980277114, 1182325618032, 6455097761454, 14207465691240, 54049709480208, 90987640183352, 546525829796442, 546525829796442]

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

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