id:A068936 - OEIS Search Results

Search: id:A068936

Displaying 1-1 of 1 results found.

page 1

Numbers having the sum of distinct prime factors not greater than the sum of exponents in prime factorization, A008472(n)<=A001222(n).

+0
7

1, 4, 8, 16, 27, 32, 48, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 243, 256, 288, 320, 324, 384, 432, 486, 512, 576, 640, 648, 729, 768, 800, 864, 972, 1024, 1152, 1280, 1296, 1458, 1536, 1600, 1728, 1792, 1944, 2000, 2048, 2187, 2304, 2560, 2592, 2916 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`fQ[n_] := Block[{f = FactorInteger@n}, Plus @@ Last /@ f >= Plus @@ First /@ f]; Select[ Range@3000, fQ@ # &] (* Robert G. Wilson v *)`
	CROSSREFS	`Cf. A068935, A054411, A068937, A068938.` `Sequence in context: A050470 A138501 A096296 this_sequence A054744 A100391 A122494` `Adjacent sequences: A068933 A068934 A068935 this_sequence A068937 A068938 A068939`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 08 2002`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 16 2006`

page 1

Search completed in 0.002 seconds

Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

AT&T Labs Research