A116101 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 1.

40, 54999166056446260156057520, 57975463942945155043148110, 71745828111009107426351428, 75139610610667830220414750, 1640418113875534941913761115401064

Offset

1,1

Links

Table of n, a(n) for n=1..6.

Example

40//32 = 63 * 64, where // denotes concatenation.

Crossrefs

Cf. A116094, A116102, A116115, A116232.

Sequence in context: A159428 A115482 A111401 * A167265 A214337 A053342

Adjacent sequences: A116098 A116099 A116100 * A116102 A116103 A116104

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved