A022386 Fibonacci sequence beginning 4, 26.

4, 26, 30, 56, 86, 142, 228, 370, 598, 968, 1566, 2534, 4100, 6634, 10734, 17368, 28102, 45470, 73572, 119042, 192614, 311656, 504270, 815926, 1320196, 2136122, 3456318, 5592440, 9048758, 14641198, 23689956, 38331154, 62021110, 100352264, 162373374, 262725638, 425099012

Offset

0,1

Links

G. C. Greubel, Table of n, a(n) for n = 0..1000

Tanya Khovanova, Recursive Sequences

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

Formula

G.f.: (4+22x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008

a(n) = 4*Fibonacci(n+2) + 18*Fibonacci(n) = 4*Fibonacci(n-1) + 26*Fibonacci(n). - G. C. Greubel, Mar 02 2018

Mathematica

Table[4*Fibonacci[n+2] + 18*Fibonacci[n], {n, 0, 50}] (* or *) LinearRecurrence[{1, 1}, {4, 26}, 50] (* G. C. Greubel, Mar 02 2018 *)

Prog

(PARI) for(n=0, 50, print1(4*fibonacci(n+2) + 18*fibonacci(n), ", ")) \\ G. C. Greubel, Mar 02 2018
(Magma) [4*Fibonacci(n+2) + 18*Fibonacci(n): n in [0..50]]; // G. C. Greubel, Mar 02 2018

Crossrefs

Sequence in context: A306687 A086909 A046963 * A059178 A056193 A196672

Adjacent sequences: A022383 A022384 A022385 * A022387 A022388 A022389

Keyword

nonn

Author

N. J. A. Sloane, Jun 14 1998

Extensions

More terms from Wesley Ivan Hurt, Jun 10 2014

Status

approved