A296603 Number of faces a Johnson solid can have.

5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 24, 26, 27, 30, 32, 34, 37, 42, 47, 52, 62

Offset

1,1

Comments

Distinct terms in A242731, sorted.

n is a member if and only if A296604(n) > 0.

Links

Table of n, a(n) for n=1..28.

Norman W. Johnson, Convex Polyhedra with Regular Faces, Canadian Journal of Mathematics, 18 (1966), 169-200.

Eric Weisstein's World of Mathematics, Johnson Solid.

Wikipedia, List of Johnson solids.

Victor A. Zalgaller, Convex Polyhedra with Regular Faces, Zap. Nauchn. Sem. LOMI, 1967, Volume 2. Pages 5-221 (Mi znsl1408).

Example

The square pyramid is the Johnson solid with the fewest faces, namely, 5, so a(1) = 5.

Crossrefs

Cf. A181708, A242731, A296602, A296604.

Sequence in context: A030541 A020710 A101107 * A268541 A155771 A138167

Adjacent sequences: A296600 A296601 A296602 * A296604 A296605 A296606

Keyword

nonn,fini,full

Author

Jonathan Sondow, Jan 28 2018

Status

approved