id:A077617 - OEIS Search Results

Search: id:A077617

Displaying 1-1 of 1 results found.

page 1

Numbers n such that Omega(n)=Omega(n+1)+Omega(n+2).

+0
1

12, 16, 24, 40, 45, 48, 56, 84, 100, 105, 132, 136, 140, 165, 168, 189, 204, 210, 224, 228, 261, 264, 272, 297, 315, 330, 345, 357, 372, 378, 380, 405, 441, 444, 450, 464, 465, 468, 477, 496, 513, 520, 522, 525, 536, 544, 546, 561, 564, 567, 588, 608, 621 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Omega(n) denotes the number of prime factors of n, counting multiplicity.`
	EXAMPLE	`a(2)=16 is a term because Omega(16)=4=Omega(17)+Omega(18)=1+3=4`
	PROGRAM	`(PARI) j=[]; for(n=1, 1000, if(bigomega(n)==bigomega(n+1)+bigomega(n+2), j=concat(j, n))); j`
	CROSSREFS	`Cf. A001222.` `Sequence in context: A070329 A064695 A162824 this_sequence A157678 A109240 A020740` `Adjacent sequences: A077614 A077615 A077616 this_sequence A077618 A077619 A077620`
	KEYWORD	`nonn`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), Dec 01 2002`

page 1

Search completed in 0.002 seconds

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research