A118521 Define sequence S_m by: initial term = m, reverse digits and add 3 to get next term. Entry shows S_6. This reaches a cycle of length 6 in 2 steps.

6, 9, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90, 12, 24, 45, 57, 78, 90

Offset

1,1

Links

Table of n, a(n) for n=1..68.

N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 1).

Formula

a(n)=A118519(n+1). [From R. J. Mathar, Aug 08 2008]

Mathematica

NestList[FromDigits[Reverse[IntegerDigits[#]]]+3&, 6, 70] (* Harvey P. Dale, Sep 25 2012 *)
Join[{6, 9}, LinearRecurrence[{0, 0, 0, 0, 0, 1}, {12, 24, 45, 57, 78, 90}, 66]] (* Ray Chandler, Jul 18 2015 *)
PadRight[{6, 9}, 100, {78, 90, 12, 24, 45, 57}] (* Harvey P. Dale, Oct 03 2015 *)

Crossrefs

Cf. A117831, A118517 on.

Sequence in context: A106218 A315961 A315962 * A095213 A263773 A242874

Adjacent sequences: A118518 A118519 A118520 * A118522 A118523 A118524

Keyword

nonn,base

Author

N. J. A. Sloane, May 06 2006

Status

approved