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A220446 Oscillating primes. 1
19, 43, 71, 79, 83, 131, 163, 191, 199, 211, 223, 227, 263, 311, 331, 347, 379, 431, 463, 467, 491, 499, 563, 659, 727, 811, 839, 863, 883, 971 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

These are the primes p for the p-adic valuation of A220449 has a well-defined oscillation.

See Moll (2012) for precise definition.

LINKS

Table of n, a(n) for n=1..30.

V. H. Moll, An arithmetic conjecture on a sequence of arctangent sums, 2012.

CROSSREFS

Cf. A220449.

Sequence in context: A095103 A094843 A094845 * A155770 A153169 A090797

Adjacent sequences:  A220443 A220444 A220445 * A220447 A220448 A220449

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 22 2012

STATUS

approved

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Last modified August 18 15:00 EDT 2019. Contains 326106 sequences. (Running on oeis4.)