id:A080647 - OEIS Search Results

Search: id:A080647

Displaying 1-1 of 1 results found.

page 1

Sum of prime factors of phi(n).

+0
1

2, 2, 2, 2, 5, 2, 5, 2, 7, 2, 5, 5, 2, 2, 2, 5, 5, 2, 5, 7, 13, 2, 7, 5, 5, 5, 9, 2, 10, 2, 7, 2, 5, 5, 5, 5, 5, 2, 7, 5, 12, 7, 5, 13, 25, 2, 12, 7, 2, 5, 15, 5, 7, 5, 5, 9, 31, 2, 10, 10, 5, 2, 5, 7, 16, 2, 13, 5, 14, 5, 5, 5, 7, 5, 10, 5, 18, 2, 5, 7, 43, 5, 2, 12, 9, 7, 13, 5, 5, 13, 10, 25, 5, 2, 5 (list; graph; listen)

	OFFSET	`3,1`
	MATHEMATICA	`Table[Apply[Plus, Transpose[FactorInteger[EulerPhi[n]]][[1]]], {n, 3, 100}]`
	CROSSREFS	`Adjacent sequences: A080644 A080645 A080646 this_sequence A080648 A080649 A080650` `Sequence in context: A123487 A130325 A107604 this_sequence A118486 A141299 A035681`
	KEYWORD	`nonn`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Feb 28 2003`

page 1

Search completed in 0.002 seconds

Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research