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A227645 Perfect powers equal to the sum of 4 factorial numbers. 2
4, 8, 9, 16, 27, 32, 125, 128, 169, 243, 361, 729, 961, 1444, 10201, 403225, 725904 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(18), if it exists, is larger than 10^100.

LINKS

Table of n, a(n) for n=1..17.

Giovanni Resta, Decompositions of a(1)-a(17)

EXAMPLE

729 = 3^6 = 1! + 2! + 3! + 6!.

CROSSREFS

Cf. A114377, A227644-A227651, A082920.

Sequence in context: A067252 A324723 A272758 * A285438 A089042 A227243

Adjacent sequences:  A227642 A227643 A227644 * A227646 A227647 A227648

KEYWORD

nonn

AUTHOR

Giovanni Resta, Jul 19 2013

STATUS

approved

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Last modified July 22 14:37 EDT 2019. Contains 325222 sequences. (Running on oeis4.)