Number of nX6 nonnegative integer arrays with upper left 0 and lower right n+6-5 and value increasing by 0 or 1 with every step right or down.
A252974
Number of nX6 nonnegative integer arrays with upper left 0 and lower right n+6-5 and value increasing by 0 or 1 with every step right or down.
Terms
- a(0) =10a(1) =192a(2) =2859a(3) =30802a(4) =248182a(5) =1592348a(6) =8528422a(7) =39423196a(8) =161160206a(9) =593478797a(10) =1997447386a(11) =6215980425a(12) =18056320047a(13) =49345966862a(14) =127715626611a(15) =314800577783a(16) =742509146839
External references
- oeis: A252974