Search: id:A156667
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%I A156667
%S A156667 1,0,1,2,0,1,0,2,0,3,4,0,2,0,5,0,4,0,6,0,11,8,0,4,0,10,0,21,0,8,0,12,0,
%T A156667 22,0,43,16,0,8,0,20,0,42,0,85,0,16,0,24,0,44,0,86,0,171,32,0,16,0,40,
               0,
%U A156667 84,0,170,0,341
%N A156667 Triangle read by rows, A156663 * (A001045 * 0^(n-k))
%C A156667 Row sums = A001045 starting with offset 1: (1, 1, 3, 5, 11, 21, 43,...).
%C A156667 As an eigentriangle, row sums = rightmost term of next row.
%F A156667 Triangle read by rows, A156663 * (an infinite lower triangular matrix 
               with A001045 as the main diagonal and the rest zeros).
%e A156667 First few rows of the triangle =
%e A156667 1;
%e A156667 0, 1;
%e A156667 2, 0, 1;
%e A156667 0, 2, 0, 3;
%e A156667 4, 0, 2, 0, 5;
%e A156667 0, 4, 0, 6, 0, 11;
%e A156667 8, 0, 4, 0, 10, 0, 21;
%e A156667 0, 8, 0, 12, 0, 22, 0, 43;
%e A156667 16, 0, 8, 0, 20, 0, 42, 0, 85;
%e A156667 0, 16, 0, 24, 0, 44, 0, 86, 0, 171;
%e A156667 32, 0, 16, 0, 40, 0, 84, 0, 170, 0, 341;
%e A156667 0, 32, 0, 48, 0, 88, 0, 172, 0, 342, 0, 683;
%e A156667 ...
%e A156667 Row 4 = (4, 0, 2, 0, 5) = termwise products of (4, 0, 2, 0, 1) and (1, 
               1, 1, 3, 5)
%Y A156667 A156663, A001045
%Y A156667 Sequence in context: A084929 A054014 A158945 this_sequence A110914 A127505 
               A138036
%Y A156667 Adjacent sequences: A156664 A156665 A156666 this_sequence A156668 A156669 
               A156670
%K A156667 nonn,tabl
%O A156667 0,4
%A A156667 Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 12 2009

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