Number of partitions into "bus routes" of an n X 1 grid.
A131709
Number of partitions into "bus routes" of an n X 1 grid.
Terms
- a(0) =1a(1) =4a(2) =14a(3) =104a(4) =904a(5) =8004a(6) =71004a(7) =630004a(8) =5590004a(9) =49600004a(10) =440100004a(11) =3905000004a(12) =34649000004a(13) =307440000004
External references
- oeis: A131709