id:A112448 - OEIS Search Results

Search: id:A112448

Displaying 1-1 of 1 results found.

page 1

a(n) = 1 iff 2*n+1 is prime, else a(n) = minimal residue of Mod[(-1)^binomial[n+2,2],2n+1].

+0
1

0, -1, 1, 1, 0, -1, 1, 0, -1, -1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, -1, -1, 0, 1, 0, 0, 1, 0, 0, -1, 1, 0, 0, -1, 0, 1, -1, 0, 0, 1, 0, -1, 0, 0, -1, 0, 0, 0, -1, 0, 1, 1, 0, -1, 1, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, -1, 0, 0, -1, -1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, 1, 0, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 1, 1, 0, 0 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Eric Weisstein's World of Mathematics, Wilson's Theorem`
	CROSSREFS	`Apart from signs, same as A101264.` `Adjacent sequences: A112445 A112446 A112447 this_sequence A112449 A112450 A112451` `Sequence in context: A118249 A095076 A130854 this_sequence A101264 A095770 A140318`
	KEYWORD	`sign`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Dec 12, 2005`

page 1

Search completed in 0.002 seconds

Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.

AT&T Labs Research