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A080605 Golomb's sequence using odd integers. 6
1, 3, 3, 3, 5, 5, 5, 7, 7, 7, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 15, 15, 15, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 21, 21, 21, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23, 23, 23, 23, 25, 25, 25, 25, 25, 25, 25, 25, 25, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Ivan Neretin, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = tau^(2-tau)*(2n)^(tau-1)+O(n^(tau-1)/log(n)) where tau is the golden ratio.

EXAMPLE

Read 1,3,3,3,5,5,5,7,7,7,9,9,9,9,9,11,11,11,11,11, as 1,(3,3,3),(5,5,5),(7,7,7),(9,9,9,9,9),(11,11,11,11,11), count occurrences between 2 parentheses, gives 1,3,3,3,5,5,... which is the sequence itself.

PROG

(PARI) a=[1, 3, 3, 3]; for(n=3, 20, for(i=1, a[n], a=concat(a, 2*n-1))); a

CROSSREFS

Cf. A001462, A080606, A080607.

Sequence in context: A130175 A200266 A101290 * A130823 A101435 A077886

Adjacent sequences:  A080602 A080603 A080604 * A080606 A080607 A080608

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 25 2003

EXTENSIONS

Corrected at the suggestion of Kevin Ryde by Benoit Cloitre, May 31 2012

STATUS

approved

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Last modified November 23 20:23 EST 2017. Contains 295141 sequences.