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A099798 a(n) is taken to be the smallest positive integer greater than a(n-1) which is consistent with the condition "n is a member of the sequence if and only if a(n) is not composite". 1
1, 2, 3, 6, 8, 11, 12, 13, 14, 15, 17, 19, 23, 29, 31, 32, 37, 38, 41, 42, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, 59, 61, 62, 63, 64, 65, 67, 71, 72, 74, 79, 83, 84, 89, 97, 98, 101, 103, 107, 109, 113, 127, 131, 137, 138, 140, 141, 142, 149, 150, 151, 157, 163, 167 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..64.

B. Cloitre, N. J. A. Sloane and M. J. Vandermast, Numerical analogues of Aronson's sequence, J. Integer Seqs., Vol. 6 (2003), #03.2.2.

B. Cloitre, N. J. A. Sloane and M. J. Vandermast, Numerical analogues of Aronson's sequence (math.NT/0305308)

EXAMPLE

a(4) cannot be 4 because 4 is composite; it cannot be 5, for then 4 is not in the sequence while a(4) is not composite; but 6 is possible.

CROSSREFS

Cf. A079000, A079254, A085925, A099797.

Sequence in context: A076627 A020489 A002240 * A230108 A097383 A072893

Adjacent sequences:  A099795 A099796 A099797 * A099799 A099800 A099801

KEYWORD

nonn

AUTHOR

Ray Chandler, Nov 02 2004

STATUS

approved

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Last modified January 17 20:36 EST 2020. Contains 330987 sequences. (Running on oeis4.)