A116195 Numbers k such that k concatenated with k+5 gives the product of two numbers which differ by 7.

7403, 8885, 12563, 41675, 54239, 2353623, 2650793, 7717533, 527390351115, 567933643889, 627121279653, 671264212463, 1335723019653517755, 2049430589972661489, 2995303155542192885, 4026214090447622723

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Example

7717533//7717538 = 8784946 * 8784953, where // denotes concatenation.

Crossrefs

Cf. A116133, A116194, A116196, A116147, A116326.

Sequence in context: A031584 A237311 A023940 * A249878 A360328 A360355

Adjacent sequences: A116192 A116193 A116194 * A116196 A116197 A116198

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved