id:A060848 - OEIS Search Results

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Difference between a nontrivial prime power (A025475) and the next prime.

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1, 3, 2, 1, 4, 2, 5, 4, 3, 2, 6, 2, 3, 4, 8, 1, 4, 4, 6, 9, 12, 6, 4, 12, 6, 7, 30, 4, 12, 12, 5, 16, 6, 4, 10, 10, 12, 10, 6, 3, 4, 6, 10, 4, 6, 2, 4, 10, 6, 17, 4, 10, 4, 18, 6, 30, 12, 12, 4, 10, 27, 4, 6, 4, 12, 4, 28, 6, 2, 10, 4, 4, 10, 12, 18, 10, 10, 3, 12, 4, 12, 6, 10, 10, 18, 10, 12 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=nextprime[A025475(n)]-A025475(n)=A013632[A025475(n)]`
	EXAMPLE	`78125=5^7 is followed by 78137, the difference is 12; a(n)=1 only for some powers of 2.`
	CROSSREFS	`Cf. A025475, A000961, A001597, A001694, A007917, A007918, A013632, A013633, A049711.` `Sequence in context: A082727 A112603 A097294 this_sequence A006020 A077427 A107641` `Adjacent sequences: A060845 A060846 A060847 this_sequence A060849 A060850 A060851`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), May 03 2001`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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