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.

A340231 Numbers of the form m^2-4 and also equal to some k concatenated with k+1.

Table of values

n a(n)
1 12
2 45
3 2021
4 3132
5 1456414565
6 3823938240
7 6991969920
8 120395120396
9 426436426437
10 902596902597
11 74780207478021
12 90902209090221
13 66713320846671332085
14 81142640598114264060
15 84822272598482227260
16 99002509969900250997
17 22443387868362244338786837
18 24905771529642490577152965

List of values

[12, 45, 2021, 3132, 1456414565, 3823938240, 6991969920, 120395120396, 426436426437, 902596902597, 74780207478021, 90902209090221, 66713320846671332085, 81142640598114264060, 84822272598482227260, 99002509969900250997, 22443387868362244338786837, 24905771529642490577152965]

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

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