Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array.
A219591
Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array.
Terms
- a(0) =10a(1) =34a(2) =233a(3) =1114a(4) =4350a(5) =16117a(6) =60252a(7) =226309a(8) =831045a(9) =2932198a(10) =9899904a(11) =32047091a(12) =99786646a(13) =299774977a(14) =871181292a(15) =2454943142a(16) =6722356023a(17) =17921513868a(18) =46593529264a(19) =118305418513a(20) =293738371262a(21) =713963398966
External references
- oeis: A219591