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.

A166483 Number of integers in [1..A112141(n)] that are multiples of the first n semiprimes, where A112141(n) is the product of the first n semiprimes.

Table of values

n a(n)
1 1
2 8
3 84
4 912
5 13344
6 210240
7 4536000
8 101969280
9 2619086400
10 69184886400
11 2314236355200
12 79546238956800
13 2824874214624000
14 108310887381312000
15 4266362489957568000
16 197608471322790528000
17 9780059370744254592000
18 502210378611975825792000
19 27829868062695415516800000
20 1595350685432248426281600000

List of values

[1, 8, 84, 912, 13344, 210240, 4536000, 101969280, 2619086400, 69184886400, 2314236355200, 79546238956800, 2824874214624000, 108310887381312000, 4266362489957568000, 197608471322790528000, 9780059370744254592000, 502210378611975825792000, 27829868062695415516800000, 1595350685432248426281600000]

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

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