A073338 Positive values of n for which 4n^2-10n+7 is prime.

2, 3, 4, 9, 10, 12, 15, 18, 22, 30, 31, 36, 37, 39, 40, 46, 51, 52, 54, 57, 60, 61, 67, 72, 73, 75, 78, 79, 82, 85, 88, 96, 103, 106, 109, 117, 124, 141, 145, 148, 156, 166, 177, 180, 186, 192, 193, 199, 204, 219, 225, 228, 229, 246, 249, 264, 267, 268, 270, 277

Offset: 1

Author

Zak Seidov, Aug 25 2002

Keywords

• easy
• nonn

Examples

			n=10 is in the sequence since 4n^2-10n+7=307 is prime.
		

Links

• Ivan Neretin, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A054554, A073337.

Programs

Mathematica

Select[Range[300], PrimeQ[4#^2-10#+7]&]

Extensions

Edited by Dean Hickerson, Aug 28 2002