A082945 Numbers n which in decimal have the form imj, where m is the middle digit, with property that j is the reversal of i, and i = m*j.

111, 212, 313, 414, 515, 616, 717, 818, 919, 11111, 22122, 33133, 44144, 55155, 66166, 77177, 88188, 99199, 1011101, 1111111, 1211121, 1311131, 1411141, 1511151, 1611161, 1711171, 1811181, 1911191, 2021202, 2121212, 2221222, 2321232, 2421242

Offset: 1

Author

Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 07 2003

Keywords

• nonn
• base

Comments

The number i should not end in 0, and m should not equal 0.

Suggested by Amarnath Murthy.

Either i and j are identical palindromes and m is 1, or i is in A031877, j is the corresponding term in A008919, and m is either 4 or 9. - Charlie Neder, Mar 08 2019

Examples

			rev(8712) = 2178 and 8712 = 2178*4, so 871242178 is in this sequence. - _Charlie Neder_, Mar 08 2019
		

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A002113, A008919, A031877. (Possible values of i and j)

Extensions

Edited by N. J. A. Sloane, Oct 25 2009, following discussions on the Sequence Fans Mailing List, circa Apr 17 2009

Corrected and extended by Charlie Neder, Mar 08 2019