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A062856 In the square multiplication table of size A062857[n], the smallest number which appears n times. +0
7
1, 2, 4, 6, 12, 12, 36, 60, 60, 60, 120, 120, 120, 120, 360, 360, 360, 360, 360, 360, 840, 840, 840, 840, 2520, 2520, 2520, 2520, 2520, 2520, 2520, 2520, 2520, 2520, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 5040, 10080, 10080 (list; graph; listen)
OFFSET

1,2

COMMENT

Smallest number to appear n times in any m X m multiplication table.

EXAMPLE

a(7)=36 because 36 is the first product to appear in the m X m multiplication tables 7 times as m increases from 1 to infinity.

CROSSREFS

Cf. A027424, A062851, A062854, A062855, A062857, A062858, A062859.

Sequence in context: A056793 A137387 A137394 this_sequence A056371 A067874 A015733

Adjacent sequences: A062853 A062854 A062855 this_sequence A062857 A062858 A062859

KEYWORD

nonn

AUTHOR

Ron Lalonde (ronronronlalonde(AT)hotmail.com), Jun 25 2001

EXTENSIONS

More terms from Don Reble (djr(AT)nk.ca), Nov 08 2001

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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