Search: id:A144156
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%I A144156
%S A144156 1,1,1,3,1,2,11,3,2,6,45,11,6,6,22,197,45,22,18,22,90,903,197,90,66,66,
%T A144156 90,394,4279,903,394,270,242,270,394,1806
%N A144156 Eigentriangle, row sums = A006318
%C A144156 Row sums = A006318. Left border = A001003.
%C A144156 Sum of n-th row terms = rightmost term of next row.
%F A144156 Triangle read by rows, T(n,k) = A001003(n-k)*A006318(k).
%F A144156 A001003 = (1, 1, 3, 11, 45, 197, 903,...);
%F A144156 A006318 = (1, 2, 6, 22, 90, 394, 1806,...).
%e A144156 First few rows of the triangle =
%e A144156 1;
%e A144156 1, 1;
%e A144156 3, 1, 2;
%e A144156 11, 3, 2, 6;
%e A144156 45, 11, 6, 6, 22;
%e A144156 197, 45, 22, 18, 22, 90;
%e A144156 903, 197, 90, 66, 66, 90, 394;
%e A144156 4279, 903, 394, 270, 242, 270, 394, 1806;
%e A144156 ...
%e A144156 Row = (11, 3, 2, 6) = termwise products of (11, 3, 1, 1) and (1, 1, 2, 
               6) = (11*1, 3*1, 1*2, 1*6).
%Y A144156 A006318, Cf. A001003
%Y A144156 Sequence in context: A132323 A055450 A126226 this_sequence A116854 A016567 
               A109528
%Y A144156 Adjacent sequences: A144153 A144154 A144155 this_sequence A144157 A144158 
               A144159
%K A144156 nonn,tabl
%O A144156 0,4
%A A144156 Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 12 2008

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