id:A038529 - OEIS Search Results

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n-th prime - n-th composite.

+0
8

-2, -3, -3, -2, 1, 1, 3, 4, 7, 11, 11, 16, 19, 19, 22, 27, 32, 33, 37, 39, 40, 45, 48, 53, 59, 62, 63, 65, 65, 68, 81, 83, 88, 89, 98, 99, 103, 108, 111, 116, 121, 121, 129, 130, 133, 134, 145, 155, 158, 159, 161, 165, 166, 175, 180, 185, 189, 190, 195, 197, 198, 207 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`f[ n_Integer ] := Block[ {k = n + PrimePi[ n ] + 1}, While[ k - PrimePi[ k ] - 1 != n, k++ ]; k ]; Table[ Abs[ Prime[ n ] - f[ n ] ], {n, 1, 65} ]`
	CROSSREFS	`Cf. A038529-A038532.` `Sequence in context: A074989 A123548 A131838 this_sequence A132312 A090431 A107336` `Adjacent sequences: A038526 A038527 A038528 this_sequence A038530 A038531 A038532`
	KEYWORD	`sign,easy`
	AUTHOR	`Vasiliy Danilov (danilovv(AT)usa.net) 1998 Jul`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

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