A352800 Numbers k such that 2*k^2 + 29 is prime.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 31, 33, 34, 36, 37, 38, 40, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 59, 60, 62, 64, 66, 67, 68, 69, 70, 71, 73, 75, 77, 78, 79, 80, 81, 82

Offset: 1

Author

Sean A. Irvine at the suggestion of Rémi Guillaume, Apr 03 2022

Keywords

• nonn
• easy

Links

• Robert Price, Table of n, a(n) for n = 1..10000
• Adrien-Marie Legendre, Essai sur la théorie des nombres, Paris: Duprat, 1798, p. 10.

Crossrefs

Cf. A007641.

Programs

Mathematica

Select[Range[0, 32260], PrimeQ[2 #^2 + 29] &] (* Robert Price, Apr 15 2025 *)