Search: id:A144157
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%I A144157
%S A144157 1,0,1,1,0,1,1,1,0,2,2,1,1,0,4,3,2,1,2,0,8,5,3,2,2,4,0,16,8,5,3,4,4,8,
               0,
%T A144157 32,13,8,5,6,8,8,16,0,64
%N A144157 Eigentriangle, row sums = A011782: (1, 1, 2, 4, 8, 16,...).
%C A144157 Row sums = A011782: (1, 1, 2, 4, 8, 16,...).
%C A144157 Left border = A144157: (1, 0, 1, 1, 2, 3, 5, 8,...)
%C A144157 Sum of n-th row terms = rightmost term of next row.
%F A144157 Triangle read by rows, A * B. A = an infinite lower triangular decrescendo 
               subsequences triangle with A144157: (1, 0, 1, 1, 2, 3, 5, 8,...) 
               in every column; and B = (A011782 * 0^(n-k)), 0<=k<=n = (1; 0,1; 
               0,0,2; 0,0,0,4; 0,0,0,0,8;...).
%e A144157 First few rows of the triangle =
%e A144157 1;
%e A144157 0, 1;
%e A144157 1, 0, 1;
%e A144157 1, 1, 0, 2;
%e A144157 2, 1, 1, 0, 4;
%e A144157 3, 2, 1, 2, 0, 8;
%e A144157 5, 3, 2, 2, 4, 0, 16;
%e A144157 8, 5, 3, 4, 4, 8, 0, 32;
%e A144157 13, 8, 5, 6, 8, 8, 16, 0, 64;
%e A144157 ... Row 5 = (3, 2, 1, 2, 0, 8) = termwise product of (3, 2, 1, 1, 0, 
               1) and (1, 1, 1, 2, 4, 8) = (3*1, 2*1, 1*1, 1*2, 0*4, 1*8).
%Y A144157 Sequence in context: A039801 A105821 A004564 this_sequence A004562 A123550 
               A004578
%Y A144157 Adjacent sequences: A144154 A144155 A144156 this_sequence A144158 A144159 
               A144160
%K A144157 nonn,tabl
%O A144157 0,10
%A A144157 Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 12 2008

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