|
|
A196993
|
|
Number of fixed polypons with n cells (division into triangles is significant).
|
|
0
|
|
|
6, 9, 14, 24, 42, 77, 144, 276, 538, 1065, 2136, 4321, 8790, 17967, 36890, 76050, 157380, 326824, 680880, 1422570, 2979572, 6254175, 13153242, 27712901, 58487796, 123632910
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
Eric Weisstein's World of Mathematics, Polypon
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,hard
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|