A116124 Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 5.

61, 65479, 84289, 106609, 225649, 275599, 453589, 1869505, 2272555, 2738291, 3221951, 1667833021, 2475062749, 2525062249, 3500010739, 9032526511, 9225507211, 1753016898055, 1860598847399, 3233666953849, 3379207972471

Offset

1,1

Links

Table of n, a(n) for n=1..21.

Example

9225507211//9225507206 = 9604950394 * 9604950399, where // denotes concatenation.

Crossrefs

Cf. A116118, A054214, A116125, A116130, A116255.

Sequence in context: A182384 A235008 A058996 * A068533 A093631 A087513

Adjacent sequences: A116121 A116122 A116123 * A116125 A116126 A116127

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved