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A116235
n times n+4 gives the concatenation of two numbers m and m-8.
5
79, 8155, 9799, 467345, 532652, 997999, 76450587, 99979999, 7801738413, 8593817621, 9208120791, 9999799999, 346667333465, 401461854013, 598538145984, 653332666532, 945207479451, 999997999999, 48349470735058
OFFSET
1,1
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved