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.

A236528 Start with 4; thereafter, primes obtained by concatenating to the end of previous term the next smallest number that will produce a prime.

Table of values

n a(n)
1 4
2 41
3 419
4 41911
5 4191119
6 41911193
7 419111933
8 41911193341
9 4191119334151
10 419111933415151
11 41911193341515187
12 4191119334151518719
13 419111933415151871963
14 41911193341515187196323
15 4191119334151518719632313
16 419111933415151871963231329

List of values

[4, 41, 419, 41911, 4191119, 41911193, 419111933, 41911193341, 4191119334151, 419111933415151, 41911193341515187, 4191119334151518719, 419111933415151871963, 41911193341515187196323, 4191119334151518719632313, 419111933415151871963231329]

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

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