A035828 Coordination sequence for lattice D*_86 (with edges defined by l_1 norm = 1).

1, 172, 14792, 848132, 36477072, 1255320156, 36010162520, 885717793460, 19069940181280, 365136637303820, 6295606113770728, 98739134664027236, 1420507268612532656, 18877952360204608956, 233146706655610223736

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Joan Serra-Sagrista, Enumeration of lattice points in l_1 norm, Inf. Proc. Lett. 76 (1-2) (2000) 39-44.

Formula

a(m)=add(2^k*binomial(n, k)*binomial(m-1, k-1), k=0..n)+2^n*binomial((n+2*m)/2-1, n-1); with n=86.

Crossrefs

Sequence in context: A250968 A264213 A250340 * A259017 A097845 A364937

Adjacent sequences: A035825 A035826 A035827 * A035829 A035830 A035831

Keyword

nonn

Author

N. J. A. Sloane, J. Serra-Sagrista (jserra(AT)ccd.uab.es)

Status

approved