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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.

A180460 a(n) is the smallest number m such that sigma(m)=22^n, or 0 if m does not exist.

Table of values

n a(n)
0 1
1 0
2 0
3 10363
4 136647
5 3018141
6 66411009
7 1636922343
8 31276995183
9 688217286267
10 15200749439001
11 324029599659171
12 7264291502741679
13 160447401116572437
14 3530475812620849113
15 75514126111770824037
16 1662716417771040164631
17 36586320846189859358019
18 804905851136700392012493
19 17704604426749226872106319

List of values

[1, 0, 0, 10363, 136647, 3018141, 66411009, 1636922343, 31276995183, 688217286267, 15200749439001, 324029599659171, 7264291502741679, 160447401116572437, 3530475812620849113, 75514126111770824037, 1662716417771040164631, 36586320846189859358019, 804905851136700392012493, 17704604426749226872106319]

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

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