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A206609
Fibonacci sequence beginning 13, 9.
4
13, 9, 22, 31, 53, 84, 137, 221, 358, 579, 937, 1516, 2453, 3969, 6422, 10391, 16813, 27204, 44017, 71221, 115238, 186459, 301697, 488156, 789853, 1278009, 2067862, 3345871, 5413733, 8759604, 14173337, 22932941, 37106278, 60039219, 97145497, 157184716
OFFSET
1,1
MATHEMATICA
LinearRecurrence[{1, 1}, {13, 9}, 80]
PROG
(Magma) I:=[13, 9]; [n le 2 select I[n] else Self(n-1)+Self(n-2): n in [1..40]]; // Vincenzo Librandi, Feb 16 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved