A025046 a(n) = the least odd prime p such that there are exactly n consecutive quadratic remainders modulo p.

3, 5, 19, 17, 67, 71, 131, 73, 277, 311, 827, 241, 1607, 2543, 3691, 1559, 6803, 5711, 14969, 1009, 43103, 10559, 52057, 2689, 90313, 162263, 127403, 18191, 209327, 31391, 607153, 8089, 1305511, 298483, 1694353, 33049, 3205777, 1523707

Offset: 2

Author

David W. Wilson

Keywords

• nonn

Comments

The values -1,0,+1 are considered consecutive.

Examples

			a(5)=17 because -2,-1,0,+1,+2 are quadratic remainders, squares of 7,4,0,1,11.
		

Crossrefs

Cf. A097159.

Extensions

Edited by Don Reble, May 31 2007