A116352 - OEIS

%I #6 Jul 16 2021 21:34:11

%S 3378,6617,7028,49941474,50058521,97000298,785321170881,799019801018,

%T 989301366861,997000002998,4044997109223942,4136014586911893,

%U 4248535260473902,4366325506691846,4457342984379797,5542657015620198

%N Numbers k such that k*(k+6) gives the concatenation of two numbers m and m+9.

%e 97000298 * 97000304 = 94090583//94090592, where // denotes concatenation.

%Y Cf. A116174, A116345, A116351, A116353.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006