A244058 n-th term of the 'Reverse and Add!' sequence starting with n.

1, 4, 12, 77, 44, 363, 484, 4444, 79497, 14003, 88088, 175857, 1596595, 1716517, 17794887, 13528163, 176599676, 839546037, 1317544822, 853595347, 8836886388, 13236127322, 13297007933, 668823329856, 175304440267, 909153350908, 9317488848228, 8813200023188

Offset

1,2

Comments

a(n) is a palindrome for n in {1, 2, 4, 5, 6, 7, 8, 9, 11, 21, 28, 30}.

Links

Alois P. Heinz, Table of n, a(n) for n = 1..1000

Index entries for sequences related to Reverse and Add!

Maple

b:= proc(n, j) option remember; `if`(j=1, n, (h-> h+ (s->
      parse(cat(s[-i]$i=1..length(s))))(""||h))(b(n, j-1)))
    end:
a:= n-> b(n$2):
seq(a(n), n=1..40);

Mathematica

Table[Nest[#+IntegerReverse[#]&, n, n-1], {n, 30}] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jun 07 2021 *)

Crossrefs

Main diagonal of A243238.

Cf. A001127, A033648, A033670, A006960, A004086.

Sequence in context: A078628 A358660 A301340 * A165261 A027145 A299795

Adjacent sequences: A244055 A244056 A244057 * A244059 A244060 A244061

Keyword

nonn,base

Author

Alois P. Heinz, Jun 18 2014

Status

approved