id:A080457 - OEIS Search Results

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a(1)=3; for n>1, a(n)=a(n-1) if n is already in the sequence, a(n)=a(n-1)+4 otherwise.

+0
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3, 7, 7, 11, 15, 19, 19, 23, 27, 31, 31, 35, 39, 43, 43, 47, 51, 55, 55, 59, 63, 67, 67, 71, 75, 79, 79, 83, 87, 91, 91, 95, 99, 103, 103, 107, 111, 115, 115, 119, 123, 127, 127, 131, 135, 139, 139, 143, 147, 151, 151, 155, 159, 163, 163, 167, 171, 175 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`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(n) = 3+4*(n-2-floor((n-3)/4)).`
	CROSSREFS	`Cf. A080455-A080458, A080036, A080037.` `Sequence in context: A010625 A011322 A140382 this_sequence A119644 A109386 A024612` `Adjacent sequences: A080454 A080455 A080456 this_sequence A080458 A080459 A080460`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com) and Benoit Cloitre, Mar 20 2003`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

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