A106379 Real part of Gaussian prime numbers such that the Gaussian primorial product up to them is a Gaussian prime plus one.

1, 2, 3, 6, 5, 11, 10, 18, 12, 19, 10, 13, 5, 20, 6, 50, 74, 112, 40, 140, 139

Offset

1,2

Comments

A106380 has the imaginary parts.

Links

Table of n, a(n) for n=1..21.

Sven Simon, Readable list for A106379/A106380.

Example

(1+i)*(1+2i)*(2+i)*3*(2+3i)*(3+2i) - 1 = (-195-195i) - 1 = (-196-195i), which is a Gaussian prime. This is the third number with the property, so a(3) = 3.

Crossrefs

Cf. A103431, A103432, A106377, A106380, A106381, A106383.

Sequence in context: A350339 A039653 A335372 * A232929 A001634 A172989

Adjacent sequences: A106376 A106377 A106378 * A106380 A106381 A106382

Keyword

nonn,more

Author

Sven Simon, Apr 30 2005

Extensions

Offset corrected and a(16)-a(21) added by Amiram Eldar, Aug 16 2025

Status

approved