1/4 the number of colorings of an n X n staggered hexagonal array with 4 colors.
A068283
1/4 the number of colorings of an n X n staggered hexagonal array with 4 colors.
Terms
- a(0) =1a(1) =12a(2) =264a(3) =11424a(4) =1009608a(5) =185900256a(6) =71883991272
External references
- oeis: A068283