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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.

A349676 Iterated Pillai's arithmetical function: a(1) = 2, for n >= 2, a(n) = A018804(a(n-1)).

Table of values

n a(n)
1 2
2 3
3 5
4 9
5 21
6 65
7 225
8 1365
9 14625
10 223125
11 5630625
12 376228125
13 38759765625
14 3471767578125
15 934835712890625
16 497199051298828125
17 613613372156103515625
18 2538878964828409423828125
19 25280374785655551910400390625
20 243473923053903449878692626953125
21 9202204429788304689688510894775390625

List of values

[2, 3, 5, 9, 21, 65, 225, 1365, 14625, 223125, 5630625, 376228125, 38759765625, 3471767578125, 934835712890625, 497199051298828125, 613613372156103515625, 2538878964828409423828125, 25280374785655551910400390625, 243473923053903449878692626953125, 9202204429788304689688510894775390625]

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

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