A116280 - OEIS

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

%S 6,77,80918,91808,326509,475024,524974,673489,4323776,4767131,5232867,

%T 5676222,4083911140,4975000249,5024999749,5916088858,9503960495,

%U 9604950395,4186904462791,4313465946774,5686534053224,5813095537207

%N n times n+3 gives the concatenation of two numbers m and m-1.

%Y Cf. A116149, A116274, A116279, A116281, A116287.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006