A259854 Guttmann's coefficients c_n rho_n for square lattice.

4, 32, 164, 704, 2748, 10096, 35524, 121056, 402420, 1311504, 4205476, 13304864, 41612324, 128878736, 395767092, 1206315296, 3652739252, 10995977424, 32927997988, 98139646880, 291246749300, 860965104720

Offset

1,1

Links

Table of n, a(n) for n=1..22.

A. J. Guttmann, Lattice trails II: numerical results, J. Phys. A 22 (1989), 575-588.

Crossrefs

Sequence in context: A326745 A083299 A336448 * A272424 A269811 A271126

Adjacent sequences: A259851 A259852 A259853 * A259855 A259856 A259857

Keyword

nonn,more

Author

N. J. A. Sloane, Jul 07 2015

Status

approved