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A051418 Square of lcm of {1, 2, ..., n}. 2
1, 4, 36, 144, 3600, 3600, 176400, 705600, 6350400, 6350400, 768398400, 768398400, 129859329600, 129859329600, 129859329600, 519437318400, 150117385017600, 150117385017600, 54192375991353600, 54192375991353600 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Least Common Multiples (or lcm) of {1, 4, 9, 16 ...,n^2}.

LINKS

T. D. Noe, Table of n, a(n) for n=1..200

Index entries for sequences related to lcm's

EXAMPLE

a(5) = lcm {1, 4, 9, 16, 25} = 3600

MATHEMATICA

Table[LCM@@Range[n], {n, 20}]^2  (* From Harvey P. Dale, Mar 28 2011 *)

CROSSREFS

A003418^2.

Sequence in context: A068589 A120077 A007407 * A069046 A065886 A069053

Adjacent sequences:  A051415 A051416 A051417 * A051419 A051420 A051421

KEYWORD

easy,nice,nonn

AUTHOR

Asher Auel (asher.auel(AT)reed.edu)

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Last modified February 15 21:10 EST 2012. Contains 205856 sequences.