id:A071957 - OEIS Search Results

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A071957

Sum( i=1, n, K(i,n) ) where K(x,y) is the Kronecker symbol (x/y).

+0
1

1, 1, 0, 2, 0, 2, 0, 0, 6, 2, 0, 0, 0, 4, 0, 8, 0, 0, 0, 0, 0, 2, 0, 0, 20, 6, 0, 0, 0, 4, 0, 0, 0, 4, 0, 12, 0, 6, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 42, 2, 0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0, 8, 0, 32, 0, 8, 0, 0, 0, 4, 0, 0, 0, 10, 0, 0, 0, 4, 0, 0, 54, 4, 0, 0, 0, 10, 0, 0, 0, 4, 0, 0, 0, 8, 0, 0, 0, 2, 0, 40 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`a(n) is always >= 0`
	PROGRAM	`(PARI) for(n=1, 100, print1(sum(i=1, n, kronecker(i, n)), ", "))`
	CROSSREFS	`Sequence in context: A128765 A058087 A073274 this_sequence A002655 A064891 A035211` `Adjacent sequences: A071954 A071955 A071956 this_sequence A071958 A071959 A071960`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 16 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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