id:A079890 - OEIS Search Results

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Least number > n having one more prime factor than n, not necessarily distinct.

+0
6

2, 4, 4, 8, 6, 8, 9, 16, 12, 12, 14, 16, 14, 18, 18, 32, 21, 24, 21, 24, 27, 27, 25, 32, 27, 27, 36, 36, 33, 36, 33, 64, 42, 42, 42, 48, 38, 42, 42, 48, 46, 54, 46, 54, 54, 50, 49, 64, 50, 54, 52, 54, 55, 72, 63, 72, 63, 63, 62, 72, 62, 63, 81, 128, 66, 81, 69, 81, 70, 81, 74, 96 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A001222(a(n)) = A001222(n) + 1;` `a(2^k) = 2^(k+1).` `a(A076156(n)) = A076156(n)+1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 01 2008`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..10000`
	CROSSREFS	`Cf. A079891, A079892.` `Sequence in context: A140434 A107748 A005884 this_sequence A065608 A077764 A110794` `Adjacent sequences: A079887 A079888 A079889 this_sequence A079891 A079892 A079893`
	KEYWORD	`nonn,nice`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jan 14 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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