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Search: id:A078696
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A078696 a(n+1)=a(n)+a(n-1) if a(n-1) odd, a(n+1)=a(n)+a(n-1)/2 if a(n-1) even. +0
1
1, 1, 2, 3, 4, 7, 9, 16, 25, 33, 58, 91, 120, 211, 271, 482, 753, 994, 1747, 2244, 3991, 5113, 9104, 14217, 18769, 32986, 51755, 68248, 120003, 154127, 274130, 428257, 565322, 993579, 1276240, 2269819, 2907939, 5177758, 8085697, 10674576 (list; graph; listen)
OFFSET

1,3

EXAMPLE

a(8)=16 even, a(9)=25, so a(10)=25+16/2=25+8=33 a(9)=25 odd, a(10)=33, so a(11)=25+33=58

CROSSREFS

Cf. A000045.

Sequence in context: A067236 A070763 A071114 this_sequence A098115 A082673 A080724

Adjacent sequences: A078693 A078694 A078695 this_sequence A078697 A078698 A078699

KEYWORD

easy,nonn

AUTHOR

Miklos Kristof (kristofmiki(AT)freemail.hu), Dec 18 2002

EXTENSIONS

Corrected by T. D. Noe (noe(AT)sspectra.com), Oct 25 2006

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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