id:A074718 - OEIS Search Results

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Least k such that floor(3^n/k) is prime.

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1, 3, 2, 6, 14, 23, 2, 6, 11, 14, 14, 32, 2, 6, 5, 15, 14, 42, 5, 7, 21, 63, 25, 61, 19, 53, 97, 38, 19, 55, 32, 23, 69, 110, 38, 114, 115, 31, 5, 15, 45, 29, 77, 7, 21, 63, 189, 37, 111, 226, 14, 42, 113, 44, 5, 15, 45, 135, 14, 38, 114, 137, 32, 37, 49, 147, 5, 15, 45, 79, 2 (list; graph; listen)

	OFFSET	`1,2`
	PROGRAM	`(PARI) a(n)=if(n<0, 0, k=1; while(isprime(floor(3^n/k))==0, k++); k)`
	CROSSREFS	`Sequence in context: A078088 A078091 A073883 this_sequence A007812 A082561 A110768` `Adjacent sequences: A074715 A074716 A074717 this_sequence A074719 A074720 A074721`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 04 2002`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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