id:A064040 - OEIS Search Results

Search: id:A064040

Displaying 1-1 of 1 results found.

page 1

Number of distinct prime divisors of n is a prime.

+0
3

6, 10, 12, 14, 15, 18, 20, 21, 22, 24, 26, 28, 30, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Below 210 this sequence and A024619 are identical.`
	EXAMPLE	`210 = 235*7 has 4 prime factors, hence it is not here, but it is part of A024619.`
	CROSSREFS	`Cf. A064041, A024619, A000977, A033992, A007774, A033993, A051270, A063989..` `Sequence in context: A109397 A133210 A105642 this_sequence A024619 A106543 A007774` `Adjacent sequences: A064037 A064038 A064039 this_sequence A064041 A064042 A064043`
	KEYWORD	`nonn,easy`
	AUTHOR	`Lior Manor (lior.manor(AT)gmail.com) Aug 23 2001`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research