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.

A276230 a(n) is the A106490 index where n first occurs.

Table of values

n a(n)
0 1
1 2
2 4
3 12
4 36
5 144
6 720
7 3600
8 25200
9 176400
10 1587600
11 17463600
12 192099600
13 2497294800
14 32464832400
15 551902150800
16 9382336563600
17 178264394708400
18 3387023499459600
19 77901540487570800
20 1791735431214128400
21 44793385780353210000
22 1299008187630243090000

List of values

[1, 2, 4, 12, 36, 144, 720, 3600, 25200, 176400, 1587600, 17463600, 192099600, 2497294800, 32464832400, 551902150800, 9382336563600, 178264394708400, 3387023499459600, 77901540487570800, 1791735431214128400, 44793385780353210000, 1299008187630243090000]

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

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