id:A155542 - OEIS Search Results

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Largest prime < nonprime(prime(n)).

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3, 5, 7, 11, 17, 19, 23, 23, 31, 41, 43, 47, 53, 59, 61, 73, 79, 83, 89, 89, 97, 103, 109, 113, 127, 131, 131, 139, 139, 139, 163, 167, 173, 179, 191, 193, 199, 199, 211, 211, 227, 229, 241, 241, 241, 251, 263, 283, 283, 283, 293, 293, 313, 317, 317, 331, 337 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Nonprime(n)=A018252(n).`
	EXAMPLE	`If prime=3 < nonprime(prime(n=1))=nonprime(2)=4, then 3=a(1). If prime=5 < nonprime(prime(n=2))=nonprime(3)=6, then 5=a(2). If prime=7 < nonprime(prime(n=3))=nonprime(5)=9, then 7=a(3), etc.`
	CROSSREFS	`Cf. A000040, A018252.` `Sequence in context: A052003 A019449 A094615 this_sequence A082373 A116959 A091305` `Adjacent sequences: A155539 A155540 A155541 this_sequence A155543 A155544 A155545`
	KEYWORD	`nonn`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 24 2009`

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

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