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A111432 Fibonacci(tetranacci(n)). 0
0, 0, 0, 1, 1, 1, 3, 21, 610, 514229, 225851433717, 16641027750620563662096, 13180872826374098837632191485015125807374171, 284812298108489611757988937681460995615380088782304890986477195645969271404032323901 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Table of n, a(n) for n=0..13.

FORMULA

a(n) = A000045(A000078(n)).

EXAMPLE

a(0) = Fibonacci(tetranacci(0)) = A000045(A000078(0)) = A000045(0) = 0.

a(1) = Fibonacci(tetranacci(1)) = A000045(A000078(1)) = A000045(0) = 0.

a(2) = Fibonacci(tetranacci(2)) = A000045(A000078(2)) = A000045(0) = 0.

a(3) = Fibonacci(tetranacci(3)) = A000045(A000078(3)) = A000045(1) = 1.

a(4) = Fibonacci(tetranacci(4)) = A000045(A000078(4)) = A000045(1) = 1.

a(5) = A000045(A000078(5)) = A000045(2) = 1.

a(6) = A000045(A000078(6)) = A000045(4) = 3.

a(7) = A000045(A000078(7)) = A000045(8) = 21.

a(8) = A000045(A000078(8)) = A000045(15) = 610.

a(9) = A000045(A000078(9)) = A000045(29) = 514229.

a(10) = A000045(A000078(10)) = A000045(56) = 225851433717.

MATHEMATICA

Fibonacci[LinearRecurrence[{1, 1, 1, 1}, {0, 0, 0, 1}, 14]] (* Harvey P. Dale, Aug 03 2017 *)

CROSSREFS

Cf. A000045, A000078, A066178, A007570.

Sequence in context: A135327 A128679 A292331 * A180999 A181003 A093549

Adjacent sequences:  A111429 A111430 A111431 * A111433 A111434 A111435

KEYWORD

easy,nonn

AUTHOR

Jonathan Vos Post, Nov 13 2005

STATUS

approved

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Last modified December 4 14:49 EST 2020. Contains 338924 sequences. (Running on oeis4.)