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A206608
Fibonacci sequence beginning 13, 10.
3
13, 10, 23, 33, 56, 89, 145, 234, 379, 613, 992, 1605, 2597, 4202, 6799, 11001, 17800, 28801, 46601, 75402, 122003, 197405, 319408, 516813, 836221, 1353034, 2189255, 3542289, 5731544, 9273833, 15005377, 24279210, 39284587, 63563797, 102848384, 166412181
OFFSET
1,1
FORMULA
a(n) = Fibonacci(n+5) + Fibonacci(n-6). - Greg Dresden and Gavron Campbell, Mar 03 2022
MATHEMATICA
LinearRecurrence[{1, 1}, {13, 10}, 80]
PROG
(Magma) I:=[13, 10]; [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