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.

A116224 Numbers k such that k concatenated with k+9 gives the product of two numbers which differ by 9.

Table of values

n a(n)
1 23
2 27
3 10357253
4 10577583
5 45531191
6 45991881
7 12823841629508531559818193
8 17153953024599261169512903
9 34319291138166088695725681
10 41203057971387248588060861
11 75861857890090990570762781

List of values

[23, 27, 10357253, 10577583, 45531191, 45991881, 12823841629508531559818193, 17153953024599261169512903, 34319291138166088695725681, 41203057971387248588060861, 75861857890090990570762781]

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

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