Search: id:A141396
Results 1-1 of 1 results found.

%I A141396
%S A141396 1,2,3,4,6,9,5,12,18,27,7,15,36,54,81,8,21,45,108,162,243,10,24,63,135,
%T A141396 324,486,729,11,30,72,189,405,972,1458,2187,13,33,90,216,567,1215,2916,
%U A141396 4374,6561,14,39,99,270,648,1701,3645,8748,13122,19683,16,42,117,297
%N A141396 Triangle read by rows, antidiagonals of a multiplication table: 3^n * 
               (numbers not multiples of 3).
%C A141396 Ternary representation of terms in n-th row have n rightmost adjacent 
               zeros.
%C A141396 Row sums = A141397: (1, 5, 19 62, 193, 587,...).
%F A141396 Triangle read by rows, descending antidiagonals of the multiplication 
               table: (top row, numbers not multiples of 3); leftmost column, 3^n.
%e A141396 The array begins:
%e A141396 1,....2,....4,....5,....7,...
%e A141396 3,....6,...12,...15,...21,...
%e A141396 9,...18,...36,...45,...63,...
%e A141396 27,..54,..108,..135,..189,...
%e A141396 81,.162,..324,..405,..567,...
%e A141396 ...
%e A141396 Descending antidiagonals of the array give
%e A141396 1;
%e A141396 2, 3;
%e A141396 4, 6, 9;
%e A141396 5, 12, 18, 27;
%e A141396 7, 15, 36, 54, 81;
%e A141396 8, 21, 45, 108, 162, 243;
%e A141396 10, 24, 63, 135, 324, 486, 729;
%e A141396 11, 30, 72, 189, 405, 972, 1458, 2187;
%e A141396 ...
%Y A141396 Cf. A141397, A001651.
%Y A141396 Sequence in context: A111792 A113197 A113199 this_sequence A159849 A098168 
               A035312
%Y A141396 Adjacent sequences: A141393 A141394 A141395 this_sequence A141397 A141398 
               A141399
%K A141396 nonn,tabl
%O A141396 0,2
%A A141396 Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 29 2008

Search completed in 0.001 seconds