A116246 n times n+1 gives the concatenation of two numbers m and m-6.

76, 3940697271069731588503127963131864400305034240, 4151390954867901940837042502762708788079731027, 4640791465716781132715600310864305127175798262

Offset

1,1

Links

Table of n, a(n) for n=1..4.

Formula

a(n) = A116234(n)+1. - R. J. Mathar, Apr 24 2007

Example

76 * 77 = 58//52, where // denotes concatenation.

Crossrefs

Cf. A116115, A116232, A116247, A116251.

Sequence in context: A060716 A116255 A136609 * A128670 A225522 A033397

Adjacent sequences: A116243 A116244 A116245 * A116247 A116248 A116249

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved