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.

A234539 Pentagonal numbers P = (p+q+r+s)/4 which are the arithmetic mean of four consecutive primes such that p < P < q < r < s.

Table of values

n a(n)
1 852
2 172212
3 272001
4 341055
5 777240
6 1451892
7 1710402
8 2361910
9 2922526
10 3950382
11 4794522
12 5414050
13 6272015
14 7989142
15 10580176
16 10780301
17 11325882
18 12173777
19 12483395
20 14432055
21 14665630
22 15890910
23 16581775
24 16962972
25 17124772

List of values

[852, 172212, 272001, 341055, 777240, 1451892, 1710402, 2361910, 2922526, 3950382, 4794522, 5414050, 6272015, 7989142, 10580176, 10780301, 11325882, 12173777, 12483395, 14432055, 14665630, 15890910, 16581775, 16962972, 17124772]

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

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