A116257 n times n+8 gives the concatenation of two numbers m and m-5.

7, 8217106, 8030443878983905980, 43467818511541680701794365325328847002050, 56532181488458319298205634674671152997943

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Example

8217106 * 8217114 = 6752089//6752084, where // denotes
concatenation.

Crossrefs

Cf. A116126, A116244, A116256, A116258, A116270.

Sequence in context: A051447 A076910 A172771 * A075984 A109300 A124272

Adjacent sequences: A116254 A116255 A116256 * A116258 A116259 A116260

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved