A118087 Start with 1 and repeatedly reverse the digits and add 43 to get the next term.

1, 44, 87, 121, 164, 504, 448, 887, 831, 181, 224, 465, 607, 749, 990, 142, 284, 525, 568, 908, 852, 301, 146, 684, 529, 968, 912, 262, 305, 546, 688, 929, 972, 322, 266, 705, 550, 98, 132, 274, 515, 558, 898, 941, 192, 334, 476, 717, 760, 110, 54, 88, 131, 174, 514, 458, 897, 841, 191, 234, 475, 617, 759, 1000, 44

Offset

1,2

Comments

After 1 step enters a cycle of length 63.

Links

Table of n, a(n) for n=1..65.

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Formula

a(n) = 43 + A004086(a(n-1)) for n > 1, a(1) = 1. - Alois P. Heinz, Nov 07 2019

Maple

a:= proc(n) option remember; `if`(n=1, 1, 43 +(s-> parse(
      cat(seq(s[-i], i=1..length(s)))))(cat("", a(n-1))))
    end:
seq(a(n), n=1..65);  # Alois P. Heinz, Nov 07 2019

Crossrefs

Cf. A004086, A117828, A117816, A117817.

Sequence in context: A260201 A112721 A195816 * A335481 A345409 A246412

Adjacent sequences: A118084 A118085 A118086 * A118088 A118089 A118090

Keyword

base,nonn

Author

Luc Stevens (lms022(AT)yahoo.com), May 11 2006

Extensions

a(43)-a(52) corrected and more terms added by Alois P. Heinz, Nov 07 2019

Status

approved