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Triangle T(n,k) = Bell(k) = A000110(k), 0<=k<=n.
1

%I #7 Sep 08 2013 18:30:35

%S 1,1,1,1,1,2,1,1,2,5,1,1,2,5,15,1,1,2,5,15,52,1,1,2,5,15,52,203

%N Triangle T(n,k) = Bell(k) = A000110(k), 0<=k<=n.

%e First few rows of the triangle are:

%e 1;

%e 1, 1;

%e 1, 1, 2;

%e 1, 1, 2, 5;

%e 1, 1, 2, 5, 15;

%e 1, 1, 2, 5, 15, 52;

%e ...

%Y Cf. A005001 (row sums), A000110.

%K nonn,tabl

%O 0,6

%A _Gary W. Adamson_, Jan 19 2007