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A114377 Perfect powers equal to the sum of three factorial numbers. 0
4, 8, 9, 27, 32, 36, 49, 128 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

EXAMPLE

a(1) = 4 because 4 = 0! + 1! + 2!;

a(2) = 9 because 9 = 1! + 2! + 3!;

a(3) = 27 because 27 = 1! + 2! + 4!.

CROSSREFS

Sequence in context: A153326 A168363 A171468 * A115697 A075783 A098121

Adjacent sequences:  A114374 A114375 A114376 * A114378 A114379 A114380

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Feb 10 2006

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Last modified February 13 23:23 EST 2012. Contains 205567 sequences.