id:A049711 - OEIS Search Results

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n-prevprime(n).

+0
11

1, 1, 2, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 1, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6 (list; graph; listen)

	OFFSET	`3,3`
	COMMENT	`All runs end in even numbers at a(p), new highs are found at A000101, and the increasing gap size is A005250. - Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 07 2001`
	MAPLE	`with(numtheory); A049711 := n-> n-prevprime(n);`
	MATHEMATICA	`PrevPrim[n_] := Block[ {k = n - 1}, While[ !PrimeQ[k], k-- ]; Return[k]]; Table[ n - PrevPrim[n], {n, 3, 100} ]`
	CROSSREFS	`Cf. A049613, A049653, A049716, A049847.` `Sequence in context: A054716 A060145 A035391 this_sequence A137293 A074641 A069003` `Adjacent sequences: A049708 A049709 A049710 this_sequence A049712 A049713 A049714`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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