A331065 Coordination sequence for first kind of trivalent vertex in 1-skeleton of pentagonal icositetrahedron.

1, 3, 6, 9, 9, 6, 3, 1

Offset

0,2

Comments

Computed by Tom Karzes (see link).

Links

Table of n, a(n) for n=0..7.

Tom Karzes, Polyhedron Coordination Sequences

Crossrefs

Cf. A331066, A331067.

Sequence in context: A000748 A325738 A198373 * A160178 A011383 A329513

Adjacent sequences: A331062 A331063 A331064 * A331066 A331067 A331068

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Jan 08 2020

Status

approved