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A121284 Triangle T(n,k), 1<=k<=n, read by rows given by T(n,k) = A003266(n)/A000045(k). 0

%I #4 Sep 08 2013 13:30:53

%S 1,1,1,2,2,1,6,6,3,2,30,30,15,10,6,240,240,120,80,48,30,3120,3120,

%T 1560,1040,624,390,240,65520,65520,32760,21840,13104,8190,5040,3120,

%U 2227680,2227680,1113840,742560,445536,278460,171360,106080,65520

%N Triangle T(n,k), 1<=k<=n, read by rows given by T(n,k) = A003266(n)/A000045(k).

%K nonn,tabl

%O 1,4

%A _Philippe Deléham_, Aug 24 2006

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Last modified April 23 02:53 EDT 2024. Contains 371906 sequences. (Running on oeis4.)