id:A002518 - OEIS Search Results

Search: id:A002518

Displaying 1-1 of 1 results found.

page 1

Earliest sequence with a(a(n))=5n.

+0
6

0, 2, 5, 4, 15, 10, 7, 30, 9, 40, 25, 12, 55, 14, 65, 20, 17, 80, 19, 90, 75, 22, 105, 24, 115, 50, 27, 130, 29, 140, 35, 32, 155, 34, 165, 150, 37, 180, 39, 190, 45, 42, 205, 44, 215, 200, 47, 230, 49, 240, 125, 52, 255, 54, 265, 60, 57, 280, 59, 290, 275, 62, 305 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..1000` `Index entries for sequences of the a(a(n)) = 2n family`
	FORMULA	`a(5n)=5*a(n), a(5n+1)=5n+2, a(5n+2)=25n+5, a(5n+3)=5n+4, a(5n+4)=25n+15`
	CROSSREFS	`Cf. A002516, A002517, A007379.` `Sequence in context: A122212 A102468 A079053 this_sequence A093727 A065160 A019152` `Adjacent sequences: A002515 A002516 A002517 this_sequence A002519 A002520 A002521`
	KEYWORD	`nonn,nice`
	AUTHOR	`Colin Mallows colinm(AT)research.avayalabs.com`
	EXTENSIONS	`Corrected description and more terms from Henry Bottomley (se16(AT)btinternet.com), Apr 27 2000`

page 1

Search completed in 0.002 seconds

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research