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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
OFFSET
2,1
COMMENTS
This is a permutation of sequence A024619, those positive integers that are not powers of primes.
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Aug 14 2009
EXTENSIONS
More terms from Franklin T. Adams-Watters, Aug 30 2009
STATUS
approved