id:A080199 - OEIS Search Results

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a(1)=1; for n>1, a(n)=a(n-1) - 3 if n is already in the sequence, a(n)=a(n-1) + 6 otherwise.

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1, 7, 13, 19, 25, 31, 28, 34, 40, 46, 52, 58, 55, 61, 67, 73, 79, 85, 82, 88, 94, 100, 106, 112, 109, 115, 121, 118, 124, 130, 127, 133, 139, 136, 142, 148, 154, 160, 166, 163, 169, 175, 181, 187, 193, 190, 196, 202, 208, 214, 220, 217, 223, 229 (list; graph; listen)

	OFFSET	`1,2`
	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) = 3n(1 + 1/log_3(n)) + o(n).`
	CROSSREFS	`Cf. A080455-A080458, A080036, A080037.` `Sequence in context: A035497 A059335 A070419 this_sequence A016921 A123843 A004082` `Adjacent sequences: A080196 A080197 A080198 this_sequence A080200 A080201 A080202`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Mar 20 2003`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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