A109597 Concatenation of Harshad k and its 10's complement is a Harshad number.

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 108, 192, 200, 220, 300, 400, 410, 444, 500, 600, 612, 700, 800, 864, 900, 1000, 1002, 1224, 1380, 1520, 1800, 1853, 2000, 2001, 2080, 2112, 2220, 2223, 2408, 2445, 2556, 2640, 2667, 2704, 2889, 2926, 3000, 3060, 3222

Offset

0,1

Comments

Is (2000,2001) the only consecutive pair in this sequence?

Links

Table of n, a(n) for n=0..48.

Example

192 is a term because 10^3-192 = 808 and 192808 has digital sum 28 and
192808/28 = 6886.

Crossrefs

Cf. A005349.

Sequence in context: A342855 A201014 A096092 * A194233 A263172 A008592

Adjacent sequences: A109594 A109595 A109596 * A109598 A109599 A109600

Keyword

base,easy,nonn

Author

Jason Earls, Jul 29 2005

Status

approved