A164378 a(n) = the smallest positive integer not yet in the sequence that is neither coprime to n nor to n+1.

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

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: A372453 A279606 A352482 * A124349 A360719 A365787

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