%I A123711
%S A123711 12,18,20,24,28,36,40,44,45,48,50,52,54,56,63,68,72,75,76,80,88,92,96,
%T A123711 98,99,100,104,108,112,116,117,124,135,136,144,147,148,152,153,160,162,
%U A123711 164,171,172,175,176,184,188,189,192,196,200,207,208,212,216,224,225
%N A123711 Positions in A123709 equal to 8, so that row a(n) of triangle A123706 
               has exactly 8 nonzero terms.
%C A123711 Triangle A123706 is the matrix inverse of triangle A010766, where A010766(n,
               k) = [n/k].
%o A123711 (PARI)
%Y A123711 Cf. A123706, A123709, A123710, A123712; A010766.
%Y A123711 Sequence in context: A036456 A102467 A126706 this_sequence A059404 A005101 
               A124626
%Y A123711 Adjacent sequences: A123708 A123709 A123710 this_sequence A123712 A123713 
               A123714
%K A123711 nonn
%O A123711 1,1
%A A123711 Paul D. Hanna (pauldhanna(AT)juno.com), Oct 09 2006