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A116251
n times n+1 gives the concatenation of two numbers m and m-5.
4
8, 74, 7249, 7934, 86897, 95988, 7450775, 8912862, 3546363535354546354, 4635454646463635464, 5364545353536364536, 6453636464645453646, 31993591495513432827264, 39229430087220380122376
OFFSET
1,1
EXAMPLE
8912862 * 8912863 = 7943911//7943906, where // denotes
concatenation.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved