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A080031 a(n) is taken to be the smallest positive integer not already present which is consistent with the condition "n is a member of the sequence if and only if a(n) is congruent to 2 mod 3". 3
1, 2, 5, 4, 8, 11, 7, 14, 17, 10, 20, 23, 13, 26, 29, 16, 32, 35, 19, 38, 41, 22, 44, 47, 25, 50, 53, 28, 56, 59, 31, 62, 65, 34, 68, 71, 37, 74, 77, 40, 80, 83, 43, 86, 89, 46, 92, 95, 49, 98, 101, 52, 104, 107, 55, 110, 113, 58, 116, 119, 61, 122, 125, 64, 128, 131, 67 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A permutation of all positive non-multiples of 3; also a permutation of A080030. - Matthew Vandermast, Mar 21 2003

LINKS

Table of n, a(n) for n=0..66.

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)

FORMULA

a(3m)=3m+1, a(3m+1)=6m+2, a(3m+2)=6m-1.

CROSSREFS

Cf. A079000, A079313, A080029, A080030.

Sequence in context: A134079 A243973 A183542 * A198193 A214533 A065221

Adjacent sequences:  A080028 A080029 A080030 * A080032 A080033 A080034

KEYWORD

easy,nonn

AUTHOR

N. J. A. Sloane, Mar 14 2003

EXTENSIONS

More terms from Matthew Vandermast, Mar 21 2003

STATUS

approved

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Last modified October 31 10:15 EDT 2014. Contains 248861 sequences.