Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
%I
%S 365,628,771,859,9043,81820,366328,633665,7272729,35294109,64705884,
%T 336663328,340080963,377622379,400178770,454545456,477101847,
%U 522898146,545454537,599821223,622377614,659919030,663336665
%N n times n+8 gives the concatenation of two numbers m and m+9.
%Y Cf. A116223, A116341, A116353, A116355.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006