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A076824
Let a(1)=a(2)=1, a(n)=(2^ceiling(a(n-1)/2)+1)/a(n-2).
1
1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3, 1, 1, 3, 5, 3
OFFSET
1,3
FORMULA
5-periodic with period (1, 1, 3, 5, 3)
MATHEMATICA
LinearRecurrence[{0, 0, 0, 0, 1}, {1, 1, 3, 5, 3}, 105] (* Ray Chandler, Aug 25 2015 *)
CROSSREFS
Cf. A076839.
Sequence in context: A114865 A096196 A351179 * A103728 A243533 A239730
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Nov 24 2002
STATUS
approved