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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.

A347719 a(n) is the smallest prime(n)-rough number k that has more divisors than k-1 and more divisors than k+1.

Table of values

n a(n)
1 4
2 165
3 2275
4 18473
5 45617
6 71383
7 257393
8 257393
9 1239907
10 1275797
11 1851847
12 4411843
13 6865337
14 6865337
15 8312467
16 15763207
17 24157963
18 33684317
19 33684317
20 60428597
21 61182103
22 61694813
23 73803517
24 104622971
25 128397967
26 128397967
27 173805187
28 214820797
29 284708981

List of values

[4, 165, 2275, 18473, 45617, 71383, 257393, 257393, 1239907, 1275797, 1851847, 4411843, 6865337, 6865337, 8312467, 15763207, 24157963, 33684317, 33684317, 60428597, 61182103, 61694813, 73803517, 104622971, 128397967, 128397967, 173805187, 214820797, 284708981]

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

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