Number of 4Xn 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 4Xn array.
A219597
Number of 4Xn 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 4Xn array.
Terms
- a(0) =10a(1) =46a(2) =264a(3) =1114a(4) =4152a(5) =14793a(6) =51122a(7) =170728a(8) =550156a(9) =1714425a(10) =5181670a(11) =15217623a(12) =43453991a(13) =120646669a(14) =325663378a(15) =854806408a(16) =2182941966a(17) =5428211529a(18) =13157408701a(19) =31124038143a(20) =71939605189a(21) =162674579688a(22) =360302418944
External references
- oeis: A219597