%I A116163
%S A116163 1,5,61,65479,84289,106609,225649,275599,453589,1869505,2272555,2738291,
%T A116163 3221951,1667833021,2475062749,2525062249,3500010739,9032526511,
%U A116163 9225507211,1753016898055,1860598847399,3233666953849
%N A116163 Numbers n such that n concatenated with n+1 gives the product of two 
               numbers which differ by 1.
%C A116163 Also numbers n such that n concatenated with n-1 gives the product of 
               two numbers which differ by 3.
%e A116163 1 is a member since 12 = 3*4; also 10 = 2*5.
%e A116163 5 is a member since 56 = 7*8; also 54 = 6*9.
%Y A116163 Cf. A116154, A115426, A116170, A116294.
%Y A116163 Cf. A116143, A102567, A116112, A116130, A116280.
%Y A116163 Sequence in context: A028296 A000364 A159316 this_sequence A092823 A152031 
               A111387
%Y A116163 Adjacent sequences: A116160 A116161 A116162 this_sequence A116164 A116165 
               A116166
%K A116163 nonn,base
%O A116163 1,2
%A A116163 Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006
%E A116163 Edited by N. J. A. Sloane (njas(AT)research.att.com), Apr 15 2007, Jun 
               27 2009