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A005833
a(n) = [ tau*a(n-2) ] + a(n-1).
0
0, 1, 1, 2, 3, 6, 10, 19, 35, 65, 121, 226, 421, 786, 1467, 2738, 5111, 9541, 17810, 33247, 62064, 115858, 216279, 403741, 753687, 1406953, 2626444, 4902941, 9152616, 17085741, 31894984
OFFSET
0,4
CROSSREFS
Sequence in context: A123916 A000693 A054178 * A247162 A001678 A346787
KEYWORD
nonn
AUTHOR
STATUS
approved