Number of nX6 0..3 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
A201449
Number of nX6 0..3 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) =6a(1) =13a(2) =701a(3) =846a(4) =22324a(5) =16334a(6) =363693a(7) =211755a(8) =3708666a(9) =1743841a(10) =27486101a(11) =11523462a(12) =159251638a(13) =59366033a(14) =763865999a(15) =265448264a(16) =3148137956a(17) =1014298362a(18) =11451837500a(19) =3516665645a(20) =37535616517a(21) =10943450873a(22) =112627454165a(23) =31695873391
External references
- oeis: A201449