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A116263
n times n+7 gives the concatenation of two numbers m and m-4.
5
83, 76980, 714687, 952311, 90438188, 96320541, 32980078899026, 34346653774235, 42816188292270, 42881990066485, 57118009933509, 57183811707724, 65653346225759, 67019921100968, 81321742742207
OFFSET
1,1
EXAMPLE
96320541 * 96320548 = 92776472//92776468, where // denotes
concatenation.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved