id:A003816 - OEIS Search Results

Search: id:A003816

Displaying 1-1 of 1 results found.

page 1

a(0) = 0, a(n) = a(n-1) XOR -n.

+0
2

0, 1, -1, 4, 0, 5, -1, 8, 0, 9, -1, 12, 0, 13, -1, 16, 0, 17, -1, 20, 0, 21, -1, 24, 0, 25, -1, 28, 0, 29, -1, 32, 0, 33, -1, 36, 0, 37, -1, 40, 0, 41, -1, 44, 0, 45, -1, 48, 0, 49, -1, 52, 0, 53, -1, 56, 0, 57, -1, 60, 0, 61, -1, 64, 0, 65, -1, 68 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`\|a(n)\| = n-(-1)^n*\|a(n-1)\|. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 13 2003` `a(4n)=0, a(4n+1)=4n+1, a(4n+2)=-1, a(4n+3)=4n+4, n>=0.`
	MAPLE	`(1-x+3x^2+x^3)x/(1-x^4)/(1-x^2);`
	CROSSREFS	`Cf. A003815.` `Sequence in context: A081550 A046779 A051352 this_sequence A083745 A019906 A049247` `Adjacent sequences: A003813 A003814 A003815 this_sequence A003817 A003818 A003819`
	KEYWORD	`sign`
	AUTHOR	`Marc LeBrun (mlb(AT)well.com)`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research