A205530 - OEIS

%I #7 Mar 30 2012 19:00:28

%S 4,6,8,9,10,20,30,40,50,60,70,80,90,100,200,300,400,500,600,700,800,

%T 910,1000,1090,2000,3000,4000,5000,6000,7000,8000,9000,9010,9100,

%U 10000,10090,10900,20000,30000,40000,50000,60000,70000,80000,90000,90010,90100,91000

%N Composite numbers n with k digits such that each sum of 1 to k digits of n is substring of n.

%C Complement of A205529 with respect to A202272.

%e 910 is in sequence because all possible sums of digits 0, 1, 1, 9, 9, 10, 10 are substrings of 910.

%Y Cf. A205529, A202272.

%K nonn,base

%O 1,1

%A _Jaroslav Krizek_, Jan 28 2012