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A320996 Extremal values of Euler characteristics of polytopes. 1
1, 1, 0, -2, -5, -9, -14, -34, -69, -125, -209, -461 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..12.

H. Hadwiger and P. Mani, On polyhedra with extremal Euler characteristic, J. Combin. Theory, A 17 (1974), 345-349. See p. 346.

CROSSREFS

Cf. A006481.

Sequence in context: A071609 A068501 A048071 * A051892 A006599 A013933

Adjacent sequences:  A320993 A320994 A320995 * A320997 A320998 A320999

KEYWORD

sign,more

AUTHOR

N. J. A. Sloane, Oct 26 2018

STATUS

approved

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Last modified January 26 10:49 EST 2021. Contains 340438 sequences. (Running on oeis4.)