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A283671 Square root of the single square referenced in A190641 (Numbers having exactly one non-unitary prime factor). 2
2, 2, 3, 2, 2, 3, 2, 2, 5, 3, 2, 2, 2, 2, 3, 2, 7, 5, 2, 3, 2, 2, 3, 2, 2, 5, 2, 2, 3, 2, 2, 3, 2, 2, 7, 3, 2, 2, 2, 3, 2, 11, 2, 5, 3, 2, 2, 3, 2, 2, 7, 2, 5, 2, 3, 2, 2, 3, 2, 2, 13, 3, 2, 5, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 11, 3, 2, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Price, Table of n, a(n) for n = 1..10000

EXAMPLE

A190641(4)=12, 12 = 2*2*3, so 12 has only one square factor, namely 4, and the square root is 2.

CROSSREFS

Cf. A190641, A283670.

Sequence in context: A130451 A130285 A046027 * A046028 A125954 A122443

Adjacent sequences:  A283668 A283669 A283670 * A283672 A283673 A283674

KEYWORD

nonn

AUTHOR

Robert Price, Mar 13 2017

STATUS

approved

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Last modified September 21 00:17 EDT 2019. Contains 327252 sequences. (Running on oeis4.)