A067036 - OEIS

A067036

Records for the number of integers k such that an integer is of the form k + reverse(k).

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 21, 24, 27, 30, 32, 36, 40, 45, 50, 54, 60, 63, 70, 72, 80, 81, 90, 100, 108, 120, 126, 140, 144, 160, 162, 180, 200, 210, 216, 240, 243, 270, 300, 320, 324, 360, 400, 405, 450, 500, 540, 600, 630, 700, 720, 800, 810

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

RECORDS transform of A067032. A067035 gives the corresponding integers at which these records are attained.

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..125

N. J. A. Sloane, Transforms

Index entries for sequences related to Reverse and Add!

EXAMPLE

3 is a record since there is an integer n (viz. 33, cf. A067032) such that for three integers k we have n = k + reverse(k) and for m < n there are at most two integers j such that m = j + reverse(j).

CROSSREFS

Cf. A067030, A067031, A067032, A067033, A067034, A067035.

Sequence in context: A206718 A343160 A190760 * A119823 A172432 A317622

Adjacent sequences: A067033 A067034 A067035 * A067037 A067038 A067039

KEYWORD

nonn,base

AUTHOR

Klaus Brockhaus, Dec 29 2001

EXTENSIONS

Offset set to 1 by Giovanni Resta, Jan 16 2020

STATUS

approved