id:A074375 - OEIS Search Results

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s(s+3)/2 where s is the sum of the prime factors of n (with repetition).

+0
2

0, 5, 9, 14, 20, 20, 35, 27, 27, 35, 77, 35, 104, 54, 44, 44, 170, 44, 209, 54, 65, 104, 299, 54, 65, 135, 54, 77, 464, 65, 527, 65, 119, 209, 90, 65, 740, 252, 152, 77, 902, 90, 989, 135, 77, 350, 1175, 77, 119, 90, 230, 170, 1484, 77, 152, 104, 275, 527, 1829, 90 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Neville Holmes, Integer Sequence Combinations`
	EXAMPLE	`a(20) = 9(9+3)/2 = 54 because 9 = 2+2+5 and 20 = 225.`
	CROSSREFS	`Applies A000096 to A001414. Cf. A074373, A074374.` `Sequence in context: A130877 A140490 A079509 this_sequence A020688 A126619 A049699` `Adjacent sequences: A074372 A074373 A074374 this_sequence A074376 A074377 A074378`
	KEYWORD	`easy,nonn`
	AUTHOR	`Neville Holmes (neville.holmes(AT)utas.edu.au), Aug 29 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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