A116251 n times n+1 gives the concatenation of two numbers m and m-5.

8, 74, 7249, 7934, 86897, 95988, 7450775, 8912862, 3546363535354546354, 4635454646463635464, 5364545353536364536, 6453636464645453646, 31993591495513432827264, 39229430087220380122376

Offset

1,1

Links

Table of n, a(n) for n=1..14.

Example

8912862 * 8912863 = 7943911//7943906, where // denotes
concatenation.

Crossrefs

Cf. A116120, A116246, A116252, A116265.

Sequence in context: A337370 A357208 A163970 * A166084 A123661 A288487

Adjacent sequences: A116248 A116249 A116250 * A116252 A116253 A116254

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved