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A115418 Define a k-th-power loop of length m>1 to be a circular permutation of the numbers 1 to m such that the sum of any two consecutive numbers is a perfect k-th-power; these numbers are the lengths of the possible k-th-power loops. 0
2, 32, 473, 9641 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

CROSSREFS

Cf. A071984, A112663.

Sequence in context: A294328 A109772 A230131 * A163952 A246213 A022028

Adjacent sequences:  A115415 A115416 A115417 * A115419 A115420 A115421

KEYWORD

nonn

AUTHOR

Roberto Tauraso, Jan 22 2006

STATUS

approved

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Last modified January 20 07:59 EST 2020. Contains 331081 sequences. (Running on oeis4.)