Number of (n+1)X(6+1) 0..1 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.
A250581
Number of (n+1)X(6+1) 0..1 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.
Terms
- a(0) =635a(1) =1743a(2) =4077a(3) =9055a(4) =19806a(5) =43202a(6) =94623a(7) =208525a(8) =463050a(9) =1035676a(10) =2332670a(11) =5285207a(12) =12037997a(13) =27534946a(14) =63206421a(15) =145492457a(16) =335661686a(17) =775727155a(18) =1795208098a(19) =4158803848a(20) =9642241072a(21) =22369233408a(22) =51919766166a(23) =120550121826
External references
- oeis: A250581