A331005 a(n) is the imaginary part of f(n) (as defined in A330780).

0, 1, 5, 9, 11, 9, 3, -3, -6, -3, 3, 9, 12, 8, 2, -4, -8, -4, 4, 12, 16, 12, 4, -6, -10, -6, 2, 10, 14, 10, 0, -8, -12, -7, 3, 13, 18, 13, 3, -7, -13, -8, 2, 12, 17, 11, 1, -9, -14, -9, 1, 11, 17, 12, 2, -8, -13, -8, 4, 14, 20, 14, 2, -10, -16, -10, 2, 16, 22

Offset: 0

Author

Rémy Sigrist, Jan 05 2020

Keywords

• sign

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..10000
• Rémy Sigrist, PARI program for A331005

Crossrefs

Cf. A330780.

Programs

PARI

See Links section.