Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX4 array.
A219295
Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX4 array.
Terms
- a(0) =10a(1) =35a(2) =261a(3) =1540a(4) =8424a(5) =42938a(6) =204842a(7) =912956a(8) =3824676a(9) =15209685a(10) =57837351a(11) =211203417a(12) =742716089a(13) =2521452690a(14) =8283479640a(15) =26391360139a(16) =81707036845a(17) =246254219675a(18) =723671248714
External references
- oeis: A219295