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A138807
Let M = 2 X 2 matrix [0, 1; 1, Pi]; then a(n) = 0 if n=0, 1 if n=1; and otherwise a(n) = floor(M^(n-1)[2,2]).
0
0, 1, 3, 10, 37, 128, 439, 1508, 5179, 17779, 61033, 209522, 719266, 2469165, 8476377, 29098491, 99891986, 342918422, 1177201983, 4041207525, 13873029857, 47624616207, 163490174266, 561244146614
OFFSET
0,3
EXAMPLE
a(2) = 3 since M^1 = matrix [0, 1; 1, Pi], and the (2,2) entry is Pi, with floor(Pi)=3.
CROSSREFS
Sequence in context: A080625 A289615 A359721 * A149043 A296000 A360586
KEYWORD
nonn
AUTHOR
Gary W. Adamson, Mar 30 2008
EXTENSIONS
Corrected by N. J. A. Sloane, Oct 27 2019 at the suggestion of Harvey P. Dale.
STATUS
approved