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A084711 -21*zeta_K(-1), where K runs through the simplest cubic fields. 2
1, 7, 21, 147, 1393, 2569, 7525, 13748, 30171, 43491, 100639, 123456, 224175, 296991, 495367, 658684, 1013008, 1438440, 1954357, 2310462, 3813903, 4092029, 5916929, 6974592, 10276475, 10989267, 14919105, 21957309, 26812232, 36865003 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..30.

Hyun Kwang Kim and Jung Soo Kim, Evaluation of zeta function of the simplest cubic field at negative odd integers, Math. Comp. 71 (2002), no. 239, 1243-1262.

CROSSREFS

See A005471 for discriminants. Cf. A084719, A084734.

Sequence in context: A028248 A267609 A032032 * A183938 A060146 A111878

Adjacent sequences:  A084708 A084709 A084710 * A084712 A084713 A084714

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 03 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Jul 03 2003

STATUS

approved

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Last modified September 23 17:37 EDT 2021. Contains 347618 sequences. (Running on oeis4.)