Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 2 X n array.
A219628
Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 2 X n array.
Terms
- a(0) =6a(1) =11a(2) =24a(3) =54a(4) =103a(5) =178a(6) =290a(7) =453a(8) =684a(9) =1003a(10) =1433a(11) =2000a(12) =2733a(13) =3664a(14) =4828a(15) =6263a(16) =8010a(17) =10113a(18) =12619a(19) =15578a(20) =19043a(21) =23070a(22) =27718a(23) =33049a(24) =39128a(25) =46023a(26) =53805a(27) =62548a(28) =72329a(29) =83228
External references
- oeis: A219628