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%I A011847
%S A011847 1,1,1,1,1,1,1,2,2,1,1,2,3,2,1,1,3,5,5,3,1,1,3,7,8,7,3,1,1,4,9,14,
%T A011847 14,9,4,1,1,4,12,21,25,21,12,4,1,1,5,15,30,42,42,30,15,5,1,1,5,18,
%U A011847 41,66,77,66,41,18,5,1,1,6,22,55,99,132,132,99,55,22,6,1,1,6,26,71
%N A011847 Triangle of numbers read bt rows: T(n,k) = floor( C(n,k)/(k+1) ), k=0..n-1.
%F A011847 The rows are palindromic: T(n, k) = T(n, n-k-1).
%e A011847 Triangle begins:
%e A011847 [1]
%e A011847 [1, 1]
%e A011847 [1, 1, 1]
%e A011847 [1, 2, 2, 1]
%e A011847 [1, 2, 3, 2, 1]
%e A011847 [1, 3, 5, 5, 3, 1]
%e A011847 [1, 3, 7, 8, 7, 3, 1]
%e A011847 [1, 4, 9, 14, 14, 9, 4, 1]
%e A011847 [1, 4, 12, 21, 25, 21, 12, 4, 1]
%e A011847 [1, 5, 15, 30, 42, 42, 30, 15, 5, 1]
%Y A011847 Columns include A008619, A001840, A011842, A011795, A011843, A011797, 
               A011844, A011845, A011846, A032169. Row sums are in A095718.
%Y A011847 Sequence in context: A103343 A085263 A115092 this_sequence A091325 A143974 
               A035463
%Y A011847 Adjacent sequences: A011844 A011845 A011846 this_sequence A011848 A011849 
               A011850
%K A011847 nonn,tabl
%O A011847 1,8
%A A011847 N. J. A. Sloane (njas(AT)research.att.com).

    
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.


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