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A164378 a(n) = the smallest positive integer not yet in the sequence that is neither coprime to n nor to n+1. 2
6, 12, 10, 15, 14, 28, 18, 24, 22, 33, 26, 52, 20, 30, 34, 51, 38, 76, 35, 36, 46, 69, 40, 50, 39, 21, 58, 87, 62, 124, 42, 44, 56, 45, 74, 148, 48, 54, 82, 123, 86, 172, 55, 60, 94, 141, 63, 70, 66, 68, 106, 159, 75, 77, 72, 78, 118, 177, 122, 244, 84, 90, 80, 100, 134, 268 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

This is a permutation of sequence A024619, those positive integers that are not powers of primes.

LINKS

Table of n, a(n) for n=2..67.

CROSSREFS

A164379, A164380, A024619

Sequence in context: A242549 A315777 A279606 * A124349 A315566 A236926

Adjacent sequences:  A164375 A164376 A164377 * A164379 A164380 A164381

KEYWORD

nonn

AUTHOR

Leroy Quet, Aug 14 2009

EXTENSIONS

More terms from Franklin T. Adams-Watters, Aug 30 2009

STATUS

approved

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Last modified February 19 18:22 EST 2019. Contains 320327 sequences. (Running on oeis4.)