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Search: id:A049674
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A049674 a(n)=(F(3n)-2*F(n))/6, where F=A000045 (the Fibonacci sequence). +0
1
0, 0, 1, 5, 23, 100, 428, 1820, 7721, 32725, 138655, 587400, 2488344, 10540920, 44652257, 189150325, 801254167, 3394167980, 14377927684, 60905881300, 258001457065, 1092911716325, 4629648333311, 19611505067280 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A109765 A119012 A084615 this_sequence A077277 A073682 A034958

Adjacent sequences: A049671 A049672 A049673 this_sequence A049675 A049676 A049677

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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