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.

A145031 Smallest odd n-almost prime m such that m-2 and m+2 are both prime (cousin primes).

Table of values

n a(n)
1 5
2 9
3 45
4 81
5 675
6 1215
7 14175
8 28431
9 72171
10 597051
11 2679075
12 885735
13 10333575
14 89813529
15 286446699
16 390609135
17 789189885
18 7274895849
19 55142849601
20 204945438681
21 154580775111
22 1049522104701
23 596240132571
24 1307544150375

List of values

[5, 9, 45, 81, 675, 1215, 14175, 28431, 72171, 597051, 2679075, 885735, 10333575, 89813529, 286446699, 390609135, 789189885, 7274895849, 55142849601, 204945438681, 154580775111, 1049522104701, 596240132571, 1307544150375]

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

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