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.

A265181 Prime numbers resulting from the concatenation of at least two copies of a cubic number followed by a trailing "1.".

Table of values

n a(n)
1 881
2 27271
3 7297291
4 133113311
5 337533751
6 19683196831
7 42875428751
8 68921689211
9 1038231038231
10 1574641574641
11 2053792053791
12 2744274427441
13 4218754218751
14 6859685968591
15 7290007290001
16 7297297297291
17 106120810612081
18 224809122480911
19 274400027440001
20 280322128032211
21 317652331765231
22 500021150002111
23 812060181206011
24 1251251251251251
25 1757617576175761
26 1968319683196831
27 5931959319593191

List of values

[881, 27271, 7297291, 133113311, 337533751, 19683196831, 42875428751, 68921689211, 1038231038231, 1574641574641, 2053792053791, 2744274427441, 4218754218751, 6859685968591, 7290007290001, 7297297297291, 106120810612081, 224809122480911, 274400027440001, 280322128032211, 317652331765231, 500021150002111, 812060181206011, 1251251251251251, 1757617576175761, 1968319683196831, 5931959319593191]

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

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