A116174 Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 8.

1143, 4382, 4943, 24941511, 25058558, 94090583, 616729341438, 638432642423, 978717194478, 994009005983, 1636200161363007, 1710661666314798, 1805005185949007, 1906479843038783, 1986790648039982, 3072104679280383

Offset

1,1

Comments

Also numbers k such that k concatenated with k+9 gives the product of two numbers which differ by 6.

Links

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

Example

94090583//94090585 = 97000297 * 97000305, where // denotes concatenation.
94090583//94090592 = 97000298 * 97000304.

Crossrefs

Cf. A116168, A116173, A116175, A116181, A116305.

Cf. A116180, A116169, A116352.

Sequence in context: A132410 A252428 A251773 * A223194 A265504 A237458

Adjacent sequences: A116171 A116172 A116173 * A116175 A116176 A116177

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Extensions

Edited by N. J. A. Sloane, Apr 13 2007

Status

approved