A246996 - OEIS

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A246996

Multiplicity of the zero at x=1 of the characteristic polynomial P_n^{F+}.

0

1, 0, 0, 1, 1, 2, 1, 2, 1, 4, 7, 11, 8, 10, 20, 47, 69, 86, 103, 162

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OFFSET

1,6

LINKS

Table of n, a(n) for n=1..20.

M. Assis, J. L. Jacobsen, I. Jensen, J.-M. Maillard and B. M. McCoy, Integrability vs non-integrability: Hard hexagons and hard squares compared, arXiv preprint 1406.5566 [math-ph], 2014. See Eq. A.9.

CROSSREFS

Sequence in context: A032021 A306703 A295686 * A260612 A159829 A343593

Adjacent sequences: A246993 A246994 A246995 * A246997 A246998 A246999

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 18 2014

EXTENSIONS

The initial term(s) look wrong to me. I have written to the authors.

STATUS

approved