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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.

A116230 n times n+7 gives the concatenation of two numbers m and m-9.

Table of values

n a(n)
1 80
2 77394226
3 89158932
4 36623663376237623663376334
5 37633762366336633762366234
6 62366237633663366237633760
7 63376336623762376336623660
8 86194223018927804587702127

List of values

[80, 77394226, 89158932, 36623663376237623663376334, 37633762366336633762366234, 62366237633663366237633760, 63376336623762376336623660, 86194223018927804587702127]

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

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