A220893 G.f.: 1/H(-x), where H(x) = (1+8*x+22*x^2+8*x^3+x^4)/(1-x)^6.

1, 14, 105, 560, 2296, 6880, 8904, -62320, -641704, -3698240, -15975896, -51517200, -89612104, 292372640, 3914285704, 24216707920, 110047971096, 378638107520, 797868873704, -1090920314960, -23361420852104, -156886807005600, -750668428691896, -2739638121913840, -6634132579281704

Offset

0,2

Links

Table of n, a(n) for n=0..24.

M. Hering and B. J. Howard, The ring of evenly weighted points on the line, arXiv:1211.3941 [math.AG], 2012-2014; See example 3.8.

Crossrefs

Cf. A220892.

Sequence in context: A139614 A068390 A162632 * A008506 A010966 A290895

Adjacent sequences: A220890 A220891 A220892 * A220894 A220895 A220896

Keyword

sign

Author

N. J. A. Sloane, Dec 30 2012

Status

approved