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A061490 Smallest number which when iterated n times under A003285(n) gives a square. 1
1, 2, 3, 19, 166, 8269 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Smallest m such that A003285(A003285(..(m))) = square with n iterations.

LINKS

Table of n, a(n) for n=0..5.

EXAMPLE

A003285(A003285(3)))=1, 3 is the smallest number requiring 2 iterations to reach a square number, so a(2)=3.

CROSSREFS

Cf. A003285

Sequence in context: A032329 A219285 A066227 * A048827 A032077 A014547

Adjacent sequences:  A061487 A061488 A061489 * A061491 A061492 A061493

KEYWORD

more,nonn

AUTHOR

Naohiro Nomoto, Nov 08 2001

STATUS

approved

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Last modified September 28 06:57 EDT 2021. Contains 347703 sequences. (Running on oeis4.)