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A025560 a(n) = LCM{1, C(n-1,1), C(n-2,2), ..., C(n-[ n/2 ],[ n/2 ])}. 4
1, 1, 2, 3, 12, 30, 60, 210, 840, 1260, 2520, 13860, 27720, 180180, 360360, 180180, 720720, 6126120, 12252240, 116396280, 232792560, 116396280, 232792560, 2677114440, 5354228880, 13385572200, 26771144400, 40156716600, 80313433200, 1164544781400 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..30.

MAPLE

f:=n->ilcm(seq(binomial(n-i, i), i=0..floor(n/2)));

CROSSREFS

Cf. A025562.

Sequence in context: A048085 A069062 A073618 * A247651 A305746 A221510

Adjacent sequences:  A025557 A025558 A025559 * A025561 A025562 A025563

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Entry revised by N. J. A. Sloane, May 26 2005

STATUS

approved

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Last modified May 30 15:38 EDT 2020. Contains 334726 sequences. (Running on oeis4.)