Number of n X 4 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.
A200986
Number of n X 4 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) =79a(2) =537a(3) =1225a(4) =1095a(5) =15023a(6) =95845a(7) =268375a(8) =325061a(9) =168262a(10) =1743684a(11) =7499861a(12) =15130265a(13) =14517651a(14) =5800482a(15) =49981930a(16) =178151444a(17) =307672792a(18) =257468817a(19) =87287958a(20) =681245186a(21) =2178690191a(22) =3396865595a(23) =2581813804a(24) =796596745
External references
- oeis: A200986