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A160901 a(n) = the smallest positive integer that is neither a multiple of c(n) nor is coprime to c(n), and is such that binary c(n) is a subsequence of a(n) written in binary; where c(n) = the n-th composite number. 0
18, 14, 34, 39, 26, 28, 30, 63, 66, 50, 52, 87, 54, 56, 115, 58, 111, 60, 62, 130, 135, 98, 285, 100, 102, 159, 104, 106, 108, 183, 110, 112, 399, 114, 207, 116, 118, 375, 120, 231, 122, 124, 126, 255, 258, 525, 194, 196, 279, 198, 200, 202, 303, 204, 623, 206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Only composites indexes are considered here because there are no positive integers that are neither coprime to, nor a multiple of, the primes or 1.

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Cf. A002808.

Sequence in context: A030239 A040308 A077810 * A159502 A077668 A079293

Adjacent sequences:  A160898 A160899 A160900 * A160902 A160903 A160904

KEYWORD

base,nonn

AUTHOR

Leroy Quet, May 29 2009

EXTENSIONS

Extended by Ray Chandler, Jun 14 2009

STATUS

approved

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Last modified May 25 22:30 EDT 2013. Contains 225649 sequences.