A116147 Numbers k such that k concatenated with k-2 gives the product of two numbers which differ by 9.

4962, 237412345332, 262912791034, 468307643502

Offset

1,1

Comments

Also, numbers k such that k concatenated with k+6 gives the product of two numbers which differ by 7.

Links

Table of n, a(n) for n=1..4.

Example

4962//4960 = 7040 * 7049, where // denotes concatenation.

Crossrefs

Cf. A116140, A116146, A116153, A116278.

Cf. A116195, A116200, A116202, A116209, A116332.

Sequence in context: A251847 A225718 A228302 * A233630 A254696 A203064

Adjacent sequences: A116144 A116145 A116146 * A116148 A116149 A116150

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Extensions

Edited by N. J. A. Sloane at the suggestion of Eric Desbiaux, Mar 23 2008

Status

approved