A116095 Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 2.

2137, 2892, 6369, 12217, 21964, 28233, 42312, 4978977, 9571608, 18642249, 32288908, 96039609, 200037461217, 305526508312, 570666416233, 638912248204, 996003996009, 1846991026584, 3251664327537, 4859838227992

Offset

1,1

Comments

If k-9 and k-8 have the same number of decimal digits, and k is in A115435, it also is in this sequence (and vice versa). - R. J. Mathar, Aug 09 2010

Links

Table of n, a(n) for n=1..20.

Example

96039609//96039600 = 97999800 * 97999802, where // denotes
concatenation.

Crossrefs

Cf. A116094, A116096, A116102, A116226.

Sequence in context: A319008 A020398 A115435 * A347040 A252547 A211601

Adjacent sequences: A116092 A116093 A116094 * A116096 A116097 A116098

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved