A104764 Triangle T(n,k) = Lucas(n-k+1) read by rows, 1<=k<=n.

1, 3, 1, 4, 3, 1, 7, 4, 3, 1, 11, 7, 4, 3, 1, 18, 11, 7, 4, 3, 1, 29, 18, 11, 7, 4, 3, 1, 47, 29, 18, 11, 7, 4, 3, 1, 76, 47, 29, 18, 11, 7, 4, 3, 1, 123, 76, 47, 29, 18, 11, 7, 4, 3, 1, 199, 123, 76, 47, 29, 18, 11, 7, 4, 3, 1, 322, 199, 123

Offset: 1

Author

Gary W. Adamson, Mar 24 2005

Keywords

• nonn
• tabl
• easy

Examples

			First few rows of the triangle are:
1;
3, 1;
4, 3, 1;
7, 4, 3, 1;
11, 7, 4, 3, 1;
18, 11, 7, 4, 3, 1;
...
		

Crossrefs

Cf. A104765, A000204.

Programs

Maple

A104764 := proc(n,k)
        A000204(n-k+1) ;
end proc:
seq(seq(A104764(n,k),k=1..n),n=1..13) ; # R. J. Mathar, Oct 30 2011

Formula

T(n,k) = A000204(n-k+1).