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A005909 a(n) = [ tau*a(n-1) ] + [ tau*a(n-2) ]. 0
0, 2, 3, 7, 15, 35, 80, 185, 428, 991, 2295, 5316, 12314, 28525, 66078, 153070, 354588, 821407, 1902799, 4407857, 10210855, 23653572, 54793793, 126930502, 294036085, 681138245, 1577865210, 3655144370 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A078007 A198683 A001932 * A003006 A052321 A114584

Adjacent sequences:  A005906 A005907 A005908 * A005910 A005911 A005912

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 02:30 EST 2012. Contains 205860 sequences.