A206611 Fibonacci sequence beginning 13, 7.

13, 7, 20, 27, 47, 74, 121, 195, 316, 511, 827, 1338, 2165, 3503, 5668, 9171, 14839, 24010, 38849, 62859, 101708, 164567, 266275, 430842, 697117, 1127959, 1825076, 2953035, 4778111, 7731146, 12509257, 20240403, 32749660, 52990063, 85739723, 138729786

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for linear recurrences with constant coefficients, signature (1, 1).

Mathematica

LinearRecurrence[{1, 1}, {13, 7}, 80]

Prog

(Magma) I:=[13, 7]; [n le 2 select I[n] else Self(n-1)+Self(n-2): n in [1..40]]; // Vincenzo Librandi, Feb 16 2012

Crossrefs

Cf. A000032, A000045, A206609, A206610.

Sequence in context: A217518 A364091 A257928 * A345399 A298257 A298928

Adjacent sequences: A206608 A206609 A206610 * A206612 A206613 A206614

Keyword

nonn,easy

Author

Vladimir Joseph Stephan Orlovsky, Feb 10 2012

Status

approved