A107516 Coordination sequence for D_21 lattice

1, 840, 128562, 7763336, 255132738, 5364747528, 79712283826, 895653687240, 7994897516802, 58853795985096, 367855940946354, 1997994939493896, 9608869067978306, 41551899915146376, 163639215007657266, 593194295878065224, 1997255020667905026, 6294016203637516872

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Crossrefs

Sequence in context: A218410 A022052 A055353 * A091035 A181203 A091036

Adjacent sequences: A107513 A107514 A107515 * A107517 A107518 A107519

Keyword

nonn

Author

N. J. A. Sloane, May 28 2005

Status

approved