id:A078577 - OEIS Search Results

Search: id:A078577

Displaying 1-1 of 1 results found.

page 1

Sum of all prime factors of the average of n-th twin prime pair.

+0
3

4, 5, 7, 8, 10, 12, 12, 12, 22, 13, 28, 15, 15, 15, 19, 26, 16, 16, 52, 22, 36, 19, 17, 23, 37, 29, 19, 108, 112, 23, 19, 142, 33, 29, 22, 29, 52, 22, 67, 27, 20, 51, 79, 53, 43, 25, 31, 29, 37, 42, 76, 21, 146, 288, 53, 156, 27, 318, 37, 28, 48, 33, 352, 41, 26, 81, 32 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)=A001414(A014574(n)).`
	EXAMPLE	`12-th twin prime pair = (A001359(12), A006512(12)) = (149,151), hence A014574(12) = 150 = 235*5, therefore a(12) = 2+3+5+5 = 15.`
	CROSSREFS	`Cf. A078576, A078575, A078571.` `Sequence in context: A119642 A097482 A032728 this_sequence A037259 A118731 A076203` `Adjacent sequences: A078574 A078575 A078576 this_sequence A078578 A078579 A078580`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 29 2002`

page 1

Search completed in 0.002 seconds

Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research