id:A077656 - OEIS Search Results

Search: id:A077656

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Numbers having a different number of prime factors as their successors (counted with multiplicity).

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3

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	OFFSET	`1,2`
	COMMENT	`A077655(a(n))=0; A001222(a(n))<>A001222(a(n)+1).`
	EXAMPLE	`20=225 and 20+1=21=3*7: A001222(20)<>A001222(21), therefore 20 is a term (A077655(20)=0).`
	CROSSREFS	`Cf. A001222, A045920.` `Sequence in context: A116587 A057903 A047310 this_sequence A039236 A039180 A073071` `Adjacent sequences: A077653 A077654 A077655 this_sequence A077657 A077658 A077659`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 13 2002`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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