id:A068350 - OEIS Search Results

Search: id:A068350

Displaying 1-1 of 1 results found.

page 1

Numbers n such that n*tau(n)>prime(2*n) where tau(n)=A000005(n).

+0
2

60, 72, 84, 90, 120, 144, 168, 180, 192, 210, 216, 240, 252, 264, 270, 280, 288, 300, 312, 324, 330, 336, 360, 378, 384, 390, 396, 408, 420, 432, 440, 450, 456, 462, 468, 480, 504, 510, 520, 528, 540, 560, 576, 588, 600, 612, 624, 630, 648, 660, 672, 684 (list; graph; listen)

	OFFSET	`1,1`
	PROGRAM	`PARI: for(n=1, 1000, if(nnumdiv(n)>prime(2n), print1(n, ", ")))`
	CROSSREFS	`Sequence in context: A131564 A036457 A030630 this_sequence A114837 A154548 A067207` `Adjacent sequences: A068347 A068348 A068349 this_sequence A068351 A068352 A068353`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 28 2002`

page 1

Search completed in 0.002 seconds

Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research