A127568 Triangle T(n,k) = Bell(k) = A000110(k), 0<=k<=n.

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

Offset: 0

Author

Gary W. Adamson, Jan 19 2007

Keywords

• nonn
• tabl

Examples

			First few rows of the triangle are:
1;
1, 1;
1, 1, 2;
1, 1, 2, 5;
1, 1, 2, 5, 15;
1, 1, 2, 5, 15, 52;
...
		

Crossrefs

Cf. A005001 (row sums), A000110.