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Search: id:A133999
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A133999 a(1) = a(2) = 1; a(n+1) = round( a(n) + sqrt(3)*a(n-1)). +0
1
1, 1, 3, 5, 10, 19, 36, 69, 131, 251, 478 (list; graph; listen)
OFFSET

1,3

EXAMPLE

a(7) = 36 because a(6) is 19 and sqrt(3)*a(5) = 17.32, round(19+17.32) = 36

CROSSREFS

Sequence in context: A018168 A084321 A158943 this_sequence A014610 A117591 A003055

Adjacent sequences: A133996 A133997 A133998 this_sequence A134000 A134001 A134002

KEYWORD

easy,nonn

AUTHOR

Ben Thurston (benthurston27(AT)yahoo.com), Jan 09 2008

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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