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.

A104363 Euler's totient of A104357(n) = A104350(n) - 1.

Table of values

n a(n)
2 1
3 4
4 10
5 58
6 178
7 1258
8 2280
9 7558
10 37798
11 415798
12 1229760
13 16144536
14 113488440
15 567495336
16 1135133998
17 19295619336
18 56915913600
19 1085995965600
20 5499724229998
21 37888326510336
22 423202615117920
23 9425816095466520
24 29220034833989998
25 146100157813443360
26 1882777893068160000
27 5683471349506454400
28 39885027849235856880

List of values

[1, 4, 10, 58, 178, 1258, 2280, 7558, 37798, 415798, 1229760, 16144536, 113488440, 567495336, 1135133998, 19295619336, 56915913600, 1085995965600, 5499724229998, 37888326510336, 423202615117920, 9425816095466520, 29220034833989998, 146100157813443360, 1882777893068160000, 5683471349506454400, 39885027849235856880]

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

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