

A258004


Capless binary boundary codes for holeless strictly nonoverlapping polyhexes, only the maximal representative from each equivalence class obtained by rotating.


4



0, 63, 990, 3822, 15222, 15738, 15804, 60858, 62394, 62940, 224694, 241110, 241338, 243162, 243420, 244188, 249306, 249318, 249564, 249660, 251370, 251628, 251634, 252396, 252660, 252792, 964314, 964326, 965340, 972522, 972636, 973548, 976620, 990678, 995034, 995046, 997098, 997212, 998124, 998130, 1003242, 1005420
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,2


COMMENTS

Indexing starts from zero, because a(0) = 0 is a special case, indicating an empty path, which thus ends at the same vertex as where it started from.


LINKS



FORMULA



EXAMPLE

63 ("111111" in binary) is present as it encodes a single hex. This is because when we walk in honeycomblattice from vertex to vertex, at each vertex turning to the same direction, we will return to the starting vertex after enclosing a hex with six such steps.


PROG

(Scheme)


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



