A004091 Fibonacci numbers written backwards.

0, 1, 1, 2, 3, 5, 8, 31, 12, 43, 55, 98, 441, 332, 773, 16, 789, 7951, 4852, 1814, 5676, 64901, 11771, 75682, 86364, 52057, 393121, 814691, 118713, 922415, 40238, 9626431, 9038712, 8754253, 7882075, 5647229, 25303941, 71875142, 96188093, 68954236, 551433201, 141085561, 692419762, 734494334, 337804107, 713094311, 3091136381, 3705121792

Offset

0,4

Comments

Or, Fibonacci numbers reversed.

Links

N. J. A. Sloane and Alois P. Heinz, Table of n, a(n) for n = 0..1000

N. J. A. Sloane, Transforms

N. J. A. Sloane, Maple program for A004091

Formula

a(n) = A004086(A000045(n)). - Reinhard Zumkeller, Mar 08 2013

Maple

a:= n-> (s-> parse(cat(s[-i]$i=1..length(s))))(
         ""||((<<0|1>, <1|1>>^n)[1, 2])):
seq(a(n), n=0..50);  # Alois P. Heinz, Apr 09 2015

Mathematica

FromDigits[Reverse[IntegerDigits[#]]]&/@Fibonacci[Range[50]] (* Harvey P. Dale, Jun 10 2011 *)

Prog

(Haskell)
a004091 = a004086 . a000045  -- Reinhard Zumkeller, Mar 08 2013
(Magma) [Seqint(Reverse(Intseq(Fibonacci(n)))): n in [0..50]]; // Vincenzo Librandi, Jan 17 2016
(PARI) a(n) = fromdigits(Vecrev(digits(fibonacci(n)))); \\ Michel Marcus, Mar 25 2024

Crossrefs

Cf. A000045, A004170, A014258.

Sequence in context: A041731 A041331 A290033 * A072210 A273003 A014258

Adjacent sequences: A004088 A004089 A004090 * A004092 A004093 A004094

Keyword

nonn,base

Author

N. J. A. Sloane

Status

approved