OFFSET
1,1
LINKS
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
KEYWORD
nonn,fini,full
AUTHOR
Jonathan Sondow, Jan 28 2018
STATUS
approved