A116306 n times n+9 gives the concatenation of two numbers m and m+2.

3349727, 3922992, 6077000, 6650265, 4076746044440402197, 5923253955559597795, 7713109680804038561, 33652275100997044455421, 66347724899002955544571, 74261393963751156983420

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Example

6650265 * 6650274 = 4422608//4422610, where // denotes
concatenation.

Crossrefs

Cf. A116175, A116300, A116305, A116313.

Sequence in context: A206511 A238153 A083635 * A257917 A257916 A015408

Adjacent sequences: A116303 A116304 A116305 * A116307 A116308 A116309

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved