Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 5 ones in any 5 X 5 X 5 subtriangle.
A153944
Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 5 ones in any 5 X 5 X 5 subtriangle.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =8a(5) =6a(6) =28a(7) =164a(8) =366a(9) =1829a(10) =16995a(11) =53701a(12) =369189a(13) =5605587a(14) =28526549a(15) =299788077a(16) =7021649770a(17) =53533022280
External references
- oeis: A153944