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A119634 a(n) = lcm(1,...,2n+2)/2. 3
1, 6, 30, 420, 1260, 13860, 180180, 360360, 6126120, 116396280, 116396280, 2677114440, 13385572200, 40156716600, 1164544781400, 72201776446800, 72201776446800, 72201776446800, 2671465728531600, 2671465728531600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 0..1000

Vaclav Kotesovec, Plot of log(a(n))/n for n = 1..10000

MATHEMATICA

Table[LCM @@ Range[2*n + 2]/2, {n, 0, 20}] (* Vaclav Kotesovec, Mar 04 2019 *)

PROG

(GAP) List([0..20], n->Lcm(List([1..2*n+2]))/2); # Muniru A Asiru, Mar 04 2019

(PARI) {a(n) = lcm(vector(2*n+2, i, i))/2}; \\ G. C. Greubel, Mar 05 2019

(MAGMA) [LCM([1..2*n+2])/2: n in [0..20]]; // G. C. Greubel, Mar 05 2019

(Sage) [lcm(range(1, 2*n+3))/2 for n in (0..20)] # G. C. Greubel, Mar 05 2019

CROSSREFS

Cf. A003418.

Column k=0 of A120101.

Sequence in context: A332041 A201135 A111876 * A256545 A075591 A130075

Adjacent sequences:  A119631 A119632 A119633 * A119635 A119636 A119637

KEYWORD

nonn

AUTHOR

Paul Barry, Jun 09 2006

STATUS

approved

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Last modified July 10 15:45 EDT 2020. Contains 335577 sequences. (Running on oeis4.)