T(n,k)=Number of nXk 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
A200990
T(n,k)=Number of nXk 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
Terms
- a(0) =5a(1) =10a(2) =10a(3) =10a(4) =10a(5) =10a(6) =5a(7) =20a(8) =20a(9) =5a(10) =1a(11) =79a(12) =92a(13) =79a(14) =1a(15) =5a(16) =21a(17) =537a(18) =537a(19) =21a(20) =5a(21) =10a(22) =226a(23) =140a(24) =1225a(25) =140a(26) =226a(27) =10a(28) =10a(29) =157
External references
- oeis: A200990