Number of tilings of a 7 X n rectangle with n heptominoes of any shape.
A174251
Number of tilings of a 7 X n rectangle with n heptominoes of any shape.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =259a(4) =9525a(5) =270827a(6) =6633399a(7) =158753814a(8) =3825111851a(9) =96608374284
External references
- oeis: A174251