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A081831 a(1)=a(2)=1, a(n)=a(a(n-a(n-1)))+a(n-a(n-2)). 6
1, 1, 2, 3, 3, 3, 5, 4, 5, 5, 5, 8, 6, 6, 8, 8, 8, 8, 8, 12, 9, 8, 10, 11, 11, 12, 12, 12, 12, 12, 12, 20, 12, 10, 15, 17, 16, 13, 18, 16, 15, 20, 17, 19, 20, 20, 20, 20, 20, 20, 20, 32, 17, 16, 21, 24, 25, 18, 18, 32, 25, 20, 21, 27, 25, 26, 28, 28, 23, 32, 28, 24, 32, 32, 25, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..76.

FORMULA

Conjecture : a(n)/n -> C=0.2......

CROSSREFS

Cf. A005185.

Sequence in context: A205394 A213617 A205778 * A111912 A096288 A184995

Adjacent sequences:  A081828 A081829 A081830 * A081832 A081833 A081834

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Apr 10 2003

STATUS

approved

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Last modified May 25 10:17 EDT 2013. Contains 225647 sequences.