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n times n+7 gives the concatenation of two numbers m and m+8.
5

%I #2 Mar 30 2012 17:40:41

%S 300,421,573,694,729,9856,36356,63638,970299,4545456,5454538,88235296,

%T 351069984,403018036,493927127,506072867,596981958,648930010,

%U 736842098,739839101,766233768,769230762,827751189,857142859

%N n times n+7 gives the concatenation of two numbers m and m+8.

%Y Cf. A116215, A116340, A116345, A116347, A116353.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006