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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.

A116257 n times n+8 gives the concatenation of two numbers m and m-5.

Table of values

n a(n)
1 7
2 8217106
3 8030443878983905980
4 43467818511541680701794365325328847002050
5 56532181488458319298205634674671152997943

List of values

[7, 8217106, 8030443878983905980, 43467818511541680701794365325328847002050, 56532181488458319298205634674671152997943]

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

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