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.

A258184 Numbers which divide the concatenation of the next two primes.

Table of values

n a(n)
1 1
2 3
3 7
4 61
5 167
6 801
7 1143
8 2001
9 6001
10 8001
11 125001
12 25000001
13 181818181819
14 2500000000001
15 16666666666667
16 45000000000001
17 640000000000001
18 1142857142857143
19 4000000000000001
20 37500000000000001
21 153846153846153847
22 937500000000000001
23 2881355932203389831

List of values

[1, 3, 7, 61, 167, 801, 1143, 2001, 6001, 8001, 125001, 25000001, 181818181819, 2500000000001, 16666666666667, 45000000000001, 640000000000001, 1142857142857143, 4000000000000001, 37500000000000001, 153846153846153847, 937500000000000001, 2881355932203389831]

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

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