id:A066250 - OEIS Search Results

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a(n) = if n+1 is prime then A049084(n+1)*2 - 1 else A066246(n+1)*2.

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	OFFSET	`1,2`
	COMMENT	`Permutation of natural numbers; inverse: A066251.`
	LINKS	`Index entries for sequences that are permutations of the natural numbers`
	FORMULA	`a(n) = A026238(n+1)*2 - A010051(n+1).`
	CROSSREFS	`Cf. A066251, A049084, A066246, A026238, A010051, A066248, A066254.` `Sequence in context: A054068 A054069 A135762 this_sequence A066251 A114882 A004442` `Adjacent sequences: A066247 A066248 A066249 this_sequence A066251 A066252 A066253`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 09 2001`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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