A261908 Numbers of the form |m - R(m)| for m in A035137, where R(m) denotes the digit-reversal of m.

9, 90, 99, 180, 189, 270, 279, 360, 369, 450, 459, 540, 549, 630, 639, 720, 729, 810, 819, 900, 990, 999, 1089, 1179, 1269, 1359, 1449, 1539, 1629, 1719, 1728, 1800, 1809, 1908, 1980, 2079, 2088, 2268, 2358, 2448

Offset: 1

Author

N. J. A. Sloane, Sep 09 2015

Keywords

• nonn
• base

Comments

Created in an attempt to understand A035137. It would be nice to have an independent definition of these numbers. Obviously they are multiples of 9 - see A261909.

Examples

			21, 102, 1031 are some early terms in A035137, so this sequence contains 21-12=9, 201-102=99, 1301-1031=270.
		

Crossrefs

Cf. A002113, A035137, A261909.