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.

A080442 a(1) = 19, a(n) is the smallest prime obtained by inserting digits between every pair of digits of a(n-1).

Table of values

n a(n)
1 19
2 109
3 10009
4 100000039
5 10000000000002359
6 100000000000000000000000002031519
7 10000000000000000000000000000000000000000000000000002000301050179

List of values

[19, 109, 10009, 100000039, 10000000000002359, 100000000000000000000000002031519, 10000000000000000000000000000000000000000000000000002000301050179]

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

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