A111438 - OEIS

%I #5 Mar 30 2012 18:40:29

%S 1,1,1,3,21,987,2178309,10610209857723,155576970220531065681649693,

%T 33449372971981195681356806732944396691005381570580873

%N Fibonacci(heptanacci(n)), restricted to nonzero heptanacci numbers.

%F a(n) = A000045(A066178(n)).

%e a(0) = Fibonacci(heptanacci(0)) = A000045(A066178(0)) = A000045(1) = 1.

%e a(1) = Fibonacci(heptanacci(1)) = A000045(A066178(1)) = A000045(1) = 1.

%e a(2) = Fibonacci(heptanacci(2)) = A000045(A066178(2)) = A000045(2) = 1.

%e a(3) = Fibonacci(heptanacci(3)) = A000045(A066178(3)) = A000045(4) = 3.

%e a(4) = Fibonacci(heptanacci(4)) = A000045(A066178(4)) = A000045(8) = 21.

%e a(5) = Fibonacci(heptanacci(5)) = A000045(A066178(5)) = A000045(16) = 987.

%e a(6) = A000045(A066178(6)) = A000045(32) = 2178309.

%e a(7) = A000045(A066178(7)) = A000045(64) = 10610209857723.

%e a(8) = A000045(A066178(8)) = A000045(127) = 155576970220531065681649693.

%Y Cf. A000045, A001592, A066178, A007570.

%K easy,nonn

%O 0,4

%A _Jonathan Vos Post_, Nov 14 2005

%E Corrected by _T. D. Noe_, Nov 16 2006