Search: id:A135091
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%I A135091
%S A135091 1,1,1,1,2,3,1,3,9,7,1,4,18,28,19,1,5,30,70,95,51,1,6,45,140,285,306,
%T A135091 141,1,7,63,245,665,1071,987,393,1,8,84,392,1330,2856,3948,3144,1107,1,
%U A135091 9,108,588,2394,6426,11844,14148,9963,3139
%N A135091 A007318 * triangle M, where M = A002426 * 0^(n-k), 0<=k<=n.
%C A135091 Right border = A002426. Row sums = A000984: (1, 2, 6, 20, 70, 252,...).
%F A135091 A007318 * triangle M, where M = A002426 * 0^(n-k), 0<=k<=n; i.e. M = 
               an infinite lower triangular matrix with A002426 as the right border 
               and the rest zeros.
%e A135091 First few rows of the triangle are:
%e A135091 1;
%e A135091 1, 1;
%e A135091 1, 2, 3;
%e A135091 1, 3, 9, 7;
%e A135091 1, 4, 18, 28, 19;
%e A135091 1, 5, 30, 70, 95, 51;
%e A135091 1, 6, 45, 140, 285, 306, 141;
%e A135091 1, 7, 63, 245, 665, 1071, 987, 393;
%e A135091 ...
%Y A135091 Cf. A002426, A000984.
%Y A135091 Sequence in context: A139633 A152440 A134319 this_sequence A111589 A010027 
               A151880
%Y A135091 Adjacent sequences: A135088 A135089 A135090 this_sequence A135092 A135093 
               A135094
%K A135091 nonn,tabl
%O A135091 0,5
%A A135091 Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 18 2007

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