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A061431 a(n) = LCM of the n consecutive numbers n(n-1)/2 + 1 ... n(n+1)/2. 6
1, 6, 60, 2520, 60060, 1627920, 124324200, 1694579040, 446626220040, 73706596563600, 177223661334720, 171986625946535400, 3290057629552053360 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

a(1) = 1, a(2) = LCM(2,3) = 6, a(3) = LCM(4,5,6) = 60, etc.

CROSSREFS

Sequence in context: A003267 A010574 A082681 * A202620 A075069 A077682

Adjacent sequences:  A061428 A061429 A061430 * A061432 A061433 A061434

KEYWORD

nonn,easy

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 03 2001

EXTENSIONS

More terms from John W. Layman, Oct 16 2001

STATUS

approved

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Last modified May 22 07:44 EDT 2013. Contains 225511 sequences.