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A217473 Product of the first n+1 odd-indexed Lucas numbers A000032. 2
1, 4, 44, 1276, 96976, 19298224, 10054374704, 13714167096256, 48973290700730176, 457851294761126415424, 11206368290573330143917824, 718092873691648422292110244096, 120467978583384630972146706659789056 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

This sequence is used in A217472 to produce the integer instead of rational Ozeki-Prodinger triangle, and the corresponding sequence A217474.

LINKS

Table of n, a(n) for n=0..12.

FORMULA

a(n) = Product_{i=0..n} L(2*i+1), n >= 0, with the Lucas numbers L=A000032.

CROSSREFS

Cf. A000032, 2*A070825 (product of the first n+1 Lucas numbers).

Cf. A217472, A217474.

Sequence in context: A155556 A188456 A306372 * A127635 A134174 A296729

Adjacent sequences:  A217470 A217471 A217472 * A217474 A217475 A217476

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Oct 12 2012

STATUS

approved

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Last modified September 21 09:52 EDT 2021. Contains 347597 sequences. (Running on oeis4.)