A104764 - OEIS

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

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..69.

FORMULA

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

EXAMPLE

First few rows of the triangle are:

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

Cf. A104765, A000204.

Sequence in context: A347065 A322103 A272172 * A152842 A307280 A209704

Adjacent sequences: A104761 A104762 A104763 * A104765 A104766 A104767

KEYWORD

nonn,tabl,easy

AUTHOR

Gary W. Adamson, Mar 24 2005

STATUS

approved