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.

A180265 a(n) = smallest k such that sigma(k) = 14^n, or zero if no such k exists.

Table of values

n a(n)
0 1
1 13
2 0
3 1164
4 15132
5 230484
6 2823492
7 36705396
8 508541124
9 7194470556
10 100696385244
11 1503091145388
12 19540184890044
13 273550891167372
14 3811871194625676
15 53378900339114532
16 727176010568075796
17 10177815744800162004
18 142523339476298463228
19 1994910930816765350844
20 27918212600229725023068

List of values

[1, 13, 0, 1164, 15132, 230484, 2823492, 36705396, 508541124, 7194470556, 100696385244, 1503091145388, 19540184890044, 273550891167372, 3811871194625676, 53378900339114532, 727176010568075796, 10177815744800162004, 142523339476298463228, 1994910930816765350844, 27918212600229725023068]

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

Content is available under The OEIS End-User License Agreement.