id:A057898 - OEIS Search Results

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Largest number such that n=m^a(n)-a(n) with m a positive integer; i.e. where (n+a(n))^(1/a(n)) is a positive integer.

+0
3

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

	OFFSET	`1,2`
	COMMENT	`It may be that positive integers can be written as n=m^k-k (with m and k > 1) in at most one way [checked up to 10000] as well as with k=1 and m=n+1.`
	EXAMPLE	`a(5)=3 since 5=2^3-3`
	CROSSREFS	`Cf. A057897, A057899.` `Sequence in context: A030272 A157128 A164659 this_sequence A094293 A036036 A076259` `Adjacent sequences: A057895 A057896 A057897 this_sequence A057899 A057900 A057901`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Sep 26 2000`

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

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