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n times n+5 gives the concatenation of two numbers m and m+3.
5

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

%S 2,4,88,3676,6320,8786,48743,51253,87617,3762554,6237442,9217100,

%T 3266298274,3520463764,6479536232,6733701722,8063694648,8317860138,

%U 4689524709430934474,5310475290569065522,7416797436703661747

%N n times n+5 gives the concatenation of two numbers m and m+3.

%Y Cf. A116179, A116303, A116309, A116311, A116324.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006