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URL: https://oeis.org/A255875

⇱ A255875 - OEIS

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A255875
a(n) = Fibonacci(n+2) + n - 2.
1
1, 3, 6, 10, 16, 25, 39, 61, 96, 152, 242, 387, 621, 999, 1610, 2598, 4196, 6781, 10963, 17729, 28676, 46388, 75046, 121415, 196441, 317835, 514254, 832066, 1346296, 2178337, 3524607, 5702917, 9227496, 14930384, 24157850, 39088203, 63246021, 102334191, 165580178, 267914334
OFFSET
1,2
FORMULA
G.f.: x*(-1+x^2+x^3) / ( (x^2+x-1)*(x-1)^2 ). - R. J. Mathar, Jul 10 2015
a(n) = A232896(n+1)-2. - R. J. Mathar, Jul 10 2015
MATHEMATICA
Array[Fibonacci[# + 2] + # - 2 &, 30] (* Michael De Vlieger, Jul 10 2015 *)
PROG
(PARI) main(size)={return( vector(size, n, fibonacci(n+2)+n-2)); } /* Anders Hellström, Jul 11 2015 */
CROSSREFS
Sequence in context: A145131 A265072 A152009 * A114324 A265073 A265074
KEYWORD
nonn,easy
AUTHOR
Geoff Ahiakwo, Mar 08 2015
EXTENSIONS
Terms a(31) and beyond from Andrew Howroyd, Dec 23 2019
STATUS
approved