%I A076289
%S A076289 1,11,101,111,1001,1111,10001,10101,11111,100001,111111,1000001,1001001,
%T A076289 1010101,1111111,10000001,11111111,100000001,100010001,101010101,111111111,
%U A076289 1000000001,1001001001,1111111111,10000000001,10000100001,10101010101,
               11111111111
%N A076289 Numbers of the form (10^{mr}-1)/(10^r-1) for positive integers m, r.
%D A076289 T. Chinburg and M. Henriksen, Sums of k-th powers in the ring of polynomials 
               with integer coefficients, Acta Arithmetica, 29 (1976), 227-250.
%Y A076289 Sequence in context: A072001 A099821 A057148 this_sequence A117697 A091366 
               A158051
%Y A076289 Adjacent sequences: A076286 A076287 A076288 this_sequence A076290 A076291 
               A076292
%K A076289 nonn
%O A076289 1,2
%A A076289 N. J. A. Sloane (njas(AT)research.att.com), Nov 06 2002