A343957 a(n) is the number of hexagonal faces of Johnson solid J_n.

0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1

Offset: 1

Author

Felix Fröhlich, May 05 2021

Keywords

• nonn
• fini
• full

Links

• Eric Weisstein's World of Mathematics, Johnson Solid.
• Wikipedia, List of Johnson solids.

Crossrefs

Cf. A242731, A343954, A343955, A343956, A343958, A343959.

Formula

a(n) < A242731(n).

Extensions

a(88)-a(92) from Pontus von Brömssen, May 27 2025