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A076404 Odd/even-parity of n-th perfect power. 2
1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

C. J. Glasby, S. P. Glasby, F. Pleijel, (http://dx.doi.org/10.1098/rspb.2008.0418 Worms by number), Proc. Roy. Soc. B, Proc. Biol. Sci. 275 (1647) (2008) 2071-2076.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Perfect Powers.

FORMULA

A001597(n) mod 2.

PROG

(Haskell)

a076404 = (`mod` 2) . a001597  -- Reinhard Zumkeller, Oct 04 2012

CROSSREFS

Sequence in context: A283265 A181406 A285252 * A317961 A010059 A143580

Adjacent sequences:  A076401 A076402 A076403 * A076405 A076406 A076407

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 09 2002

STATUS

approved

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Last modified April 16 05:26 EDT 2021. Contains 343030 sequences. (Running on oeis4.)