A027730 Number of independent subsets of nodes in graph formed from n-fold subdivision of tetrahedron.

1, 2, 5, 43, 910, 88151, 40685288, 128501941884, 3361302069076948

Offset

0,2

Links

Table of n, a(n) for n=0..8.

Crossrefs

Sequence in context: A116297 A215170 A286871 * A225724 A333734 A163115

Adjacent sequences: A027727 A027728 A027729 * A027731 A027732 A027733

Keyword

nonn

Author

R. H. Hardin

Status

approved