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..3 2 X n array.
A219472
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..3 2 X n array.
Terms
- a(0) =10a(1) =23a(2) =68a(3) =211a(4) =547a(5) =1248a(6) =2663a(7) =5432a(8) =10666a(9) =20206a(10) =36984a(11) =65512a(12) =112528a(13) =187831a(14) =305340a(15) =484415a(16) =751481a(17) =1141999a(18) =1702831a(19) =2495049a(20) =3597241a(21) =5109370a(22) =7157245a(23) =9897666a(24) =13524308a(25) =18274412a(26) =24436354a(27) =32358166a(28) =42457086a(29) =55230217
External references
- oeis: A219472