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A032441 Sum binomial(Fibonacci(n),i); i=0..2). 1
1, 2, 2, 4, 7, 16, 37, 92, 232, 596, 1541, 4006, 10441, 27262, 71254, 186356, 487579, 1276004, 3339821, 8742472, 22885996, 59912932, 156848617, 410626154, 1075018897, 2814412826, 7368190922, 19290113572 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

Index entries for linear recurrences with constant coefficients, signature (4,-2,-6,4,2,-1).

FORMULA

a(0)=1, a(1)=2, a(2)=2, a(3)=4, a(4)=7, a(5)=16, a(n)=4*a(n-1)- 2*a(n-2)- 6*a(n-3)+4*a(n-4)+2*a(n-5)-a(n-6). - Harvey P. Dale, Feb 02 2015

MATHEMATICA

Table[Sum[Binomial[Fibonacci[n], i], {i, 0, 2}], {n, 0, 30}] (* or *) LinearRecurrence[ {4, -2, -6, 4, 2, -1}, {1, 2, 2, 4, 7, 16}, 30] (* Harvey P. Dale, Feb 02 2015 *)

CROSSREFS

Sequence in context: A153967 A052949 A014266 * A238184 A065844 A131199

Adjacent sequences:  A032438 A032439 A032440 * A032442 A032443 A032444

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 19 05:12 EST 2018. Contains 299330 sequences. (Running on oeis4.)