A116263 n times n+7 gives the concatenation of two numbers m and m-4.

83, 76980, 714687, 952311, 90438188, 96320541, 32980078899026, 34346653774235, 42816188292270, 42881990066485, 57118009933509, 57183811707724, 65653346225759, 67019921100968, 81321742742207

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Example

96320541 * 96320548 = 92776472//92776468, where // denotes
concatenation.

Crossrefs

Cf. A116132, A116250, A116262, A116264, A116269.

Sequence in context: A268987 A087189 A201727 * A287686 A087532 A116307

Adjacent sequences: A116260 A116261 A116262 * A116264 A116265 A116266

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved