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 A078491 a(n) = lcm(1..Catalan(n)). 4
 1, 1, 2, 60, 360360, 219060189739591200, 1749342047920660916901891145781670987072592322134428432000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS For every cycle count LCM-sequence Axxxxxx in A073204 it holds that Axxxxxx(n) divides a(n). And this also applies to similar LCM-sequences induced by other "Catalan bijections", cf. A060113. LINKS Muniru A Asiru, Table of n, a(n) for n = 0..7 FORMULA a(n) = A003418(A000108(n)). PROG (PARI) a(n) = lcm([1..binomial(2*n, n)/(n+1)]); \\ Michel Marcus, Mar 21 2018 (GAP) List([0..7], n->Lcm([1..Binomial(2*n, n)/(n+1)])); # Muniru A Asiru, Mar 21 2018 CROSSREFS Composition of the sequences A000108 and A003418. Sequence in context: A078423 A231024 A121493 * A182856 A101896 A130411 Adjacent sequences:  A078488 A078489 A078490 * A078492 A078493 A078494 KEYWORD nonn AUTHOR Antti Karttunen, Jan 04 2003 STATUS approved

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Last modified June 23 13:59 EDT 2021. Contains 345402 sequences. (Running on oeis4.)