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A331004 a(n) is the real part of f(n) (as defined in A330780). 2
0, 2, 4, 2, -2, -6, -9, -6, 0, 6, 9, 6, 0, -8, -11, -8, 0, 8, 12, 8, 0, -8, -12, -7, 1, 9, 13, 9, 1, -7, -12, -8, 0, 10, 15, 10, 0, -10, -15, -10, 2, 12, 17, 12, 2, -10, -15, -10, 0, 10, 15, 10, -2, -12, -17, -12, -2, 8, 14, 9, -3, -15, -21, -15, -3, 9, 15, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Rémy Sigrist, Table of n, a(n) for n = 0..10000

Rémy Sigrist, PARI program for A331004

PROG

(PARI) See Links section.

CROSSREFS

Cf. A330780.

Sequence in context: A258751 A280233 A279902 * A278540 A280161 A280124

Adjacent sequences:  A331001 A331002 A331003 * A331005 A331006 A331007

KEYWORD

sign

AUTHOR

Rémy Sigrist, Jan 05 2020

STATUS

approved

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Last modified August 13 05:41 EDT 2020. Contains 336442 sequences. (Running on oeis4.)