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A085421
a(0)=2, a(1)=1, a(n+2)=floor[(e-1/e)*a(n+1)+a(n-2)].
2
2, 1, 4, 10, 27, 73, 198, 538, 1462, 3974, 10802, 29363, 79816, 216962, 589764, 1603144, 4357797, 11845720, 32200005, 87528688, 237927642, 646754385, 1758060692, 4778904432, 12990409077, 35311592938, 95986861417
OFFSET
0,1
COMMENTS
a(n+1)/a(n) converges to e.
For n>0, floor[log a(n)] = n-1.
This resembles a Lucas sequence.
CROSSREFS
KEYWORD
nonn
AUTHOR
Gary W. Adamson, Jun 29 2003
EXTENSIONS
Edited by Don Reble, Nov 14 2005
STATUS
approved