A116347 n times n+9 gives the concatenation of two numbers m and m+8.

345, 647, 829, 878, 933, 33180, 42271, 57721, 66812, 316429537030539, 319485532390187, 328611858418903, 332707864512186, 339600869407914, 347417506407134, 355879196889561, 370588838784509, 383811170906508

Offset

1,1

Links

Table of n, a(n) for n=1..18.

Example

66812 * 66821 = 44644//44652, where // denotes concatenation.

Crossrefs

Cf. A116216, A116342, A116346, A116355.

Sequence in context: A251812 A251811 A268145 * A063370 A095963 A247079

Adjacent sequences: A116344 A116345 A116346 * A116348 A116349 A116350

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved