id:A132194 - OEIS Search Results

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a(n) = 1 if n-th prime is 0 or 1 mod 3, otherwise 0.

+0
1

1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Binary sequence based on the primes used to make a drum-like sound.`
	MATHEMATICA	`a = Table[If[Mod[Prime[n], 3] == 0, 1, If[Mod[Prime[n], 3] == 1, 0, 1]], {n, 1, 256}]`
	CROSSREFS	`Cf. A130198.` `Sequence in context: A075439 A104338 A071023 this_sequence A092079 A139312 A071041` `Adjacent sequences: A132191 A132192 A132193 this_sequence A132195 A132196 A132197`
	KEYWORD	`nonn`
	AUTHOR	`Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Nov 05 2007`

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Last modified December 3 01:16 EST 2008. Contains 151161 sequences.

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