id:A136803 - OEIS Search Results

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Squares mod 257.

+0
2

0, 1, 2, 4, 8, 9, 11, 13, 15, 16, 17, 18, 21, 22, 23, 25, 26, 29, 30, 31, 32, 34, 35, 36, 42, 44, 46, 49, 50, 52, 57, 58, 59, 60, 61, 62, 64, 67, 68, 70, 72, 73, 79, 81, 84, 88, 89, 92, 95, 98, 99, 100, 104, 111, 113, 114, 116, 117, 118, 120, 121, 122, 123, 124, 128, 129 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Because 257 is a Fermat prime, the complement of this set, A136804, is the set of primitive roots (mod 257).`
	FORMULA	`a(n) + a(129-n) = 257 for n>0.`
	MATHEMATICA	`p=257; Select[Range[0, p-1], JacobiSymbol[ #, p]==1&]`
	CROSSREFS	`Adjacent sequences: A136800 A136801 A136802 this_sequence A136804 A136805 A136806` `Sequence in context: A049642 A050907 A100675 this_sequence A035268 A035241 A034036`
	KEYWORD	`fini,nonn`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), Jan 22 2008`

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Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.

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