id:A071782 - OEIS Search Results

Search: id:A071782

Displaying 1-1 of 1 results found.

page 1

Sum of distinct squares in Z_n (mod n).

+0
1

0, 1, 1, 1, 0, 2, 0, 5, 3, 5, 0, 2, 0, 0, 0, 14, 0, 6, 0, 15, 7, 0, 0, 18, 0, 13, 18, 0, 0, 0, 0, 8, 0, 17, 0, 24, 0, 0, 13, 15, 0, 14, 0, 22, 0, 0, 0, 28, 0, 25, 0, 39, 0, 9, 0, 28, 19, 29, 0, 30, 0, 0, 21, 32, 0, 0, 0, 17, 0, 0, 0, 36, 0, 37, 50, 38, 0, 26, 0, 10 (list; graph; listen)

	OFFSET	`1,6`
	COMMENT	`a(n)=0 for prime n>3. - T. D. Noe (noe(AT)sspectra.com), Sep 06 2005`
	MATHEMATICA	`a[n_] := Mod[Apply[Plus, Union[Table[Mod[i^2, n], {i, 1, n}]]], n]`
	CROSSREFS	`Sequence in context: A077453 A021491 A121705 this_sequence A107363 A154954 A095245` `Adjacent sequences: A071779 A071780 A071781 this_sequence A071783 A071784 A071785`
	KEYWORD	`nonn`
	AUTHOR	`Santi Spadaro (spados(AT)katamail.com), Jun 24 2002`

page 1

Search completed in 0.002 seconds

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research