id:A099585 - OEIS Search Results

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Remove all 3s from prime(n) - 1.

+0
2

1, 2, 4, 2, 10, 4, 16, 2, 22, 28, 10, 4, 40, 14, 46, 52, 58, 20, 22, 70, 8, 26, 82, 88, 32, 100, 34, 106, 4, 112, 14, 130, 136, 46, 148, 50, 52, 2, 166, 172, 178, 20, 190, 64, 196, 22, 70, 74, 226, 76, 232, 238, 80, 250, 256, 262, 268, 10, 92, 280, 94, 292, 34, 310 (list; graph; listen)

	OFFSET	`1,2`
	PROGRAM	`(PARI) a(n) = (prime(n)-1)/3^valuation(prime(n)-1, 3)`
	CROSSREFS	`Equals A038502( A006093(n) ). prime(n)-1 = a(n) * 3^A099584(n).` `Cf. A057023.` `Adjacent sequences: A099582 A099583 A099584 this_sequence A099586 A099587 A099588` `Sequence in context: A061393 A055935 A086930 this_sequence A097577 A097692 A118920`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan, Oct 24 2004`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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