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A104764
Triangle T(n,k) = Lucas(n-k+1) read by rows, 1<=k<=n.
2
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
1,2
FORMULA
T(n,k) = A000204(n-k+1).
EXAMPLE
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;
...
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
CROSSREFS
Sequence in context: A347065 A322103 A272172 * A152842 A307280 A209704
KEYWORD
nonn,tabl,easy
AUTHOR
Gary W. Adamson, Mar 24 2005
STATUS
approved