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Search: id:A061984
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A061984 a(n) = 1 + a([n/2]) + a([n/3]) with a(0) = 0. +0
6
0, 1, 2, 3, 4, 4, 6, 6, 7, 8, 8, 8, 11, 11, 11, 11, 12, 12, 15, 15, 15, 15, 15, 15, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 47 (list; graph; listen)
OFFSET

0,3

COMMENT

If n = 2^a*3^b, then a(n)-a(n-1) = C(a+b, a). - David Wasserman (wasserma(AT)spawar.navy.mil), Nov 17 2005

CROSSREFS

Cf. A061980, A061985, A061986, A061987.

Sequence in context: A162684 A145340 A160680 this_sequence A063208 A092988 A138768

Adjacent sequences: A061981 A061982 A061983 this_sequence A061985 A061986 A061987

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), May 24 2001

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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