Number of nX3 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 nX3 array.
A219294
Number of nX3 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 nX3 array.
Terms
- a(0) =6a(1) =17a(2) =77a(3) =261a(4) =800a(5) =2361a(6) =6647a(7) =17675a(8) =44508a(9) =106958a(10) =246970a(11) =550538a(12) =1188820a(13) =2493637a(14) =5093382a(15) =10153065a(16) =19790653a(17) =37786838a(18) =70775454a(19) =130209424a(20) =235560181a(21) =419452123a(22) =735792808a(23) =1272482264a(24) =2171035995a(25) =3656523015a(26) =6082717651
External references
- oeis: A219294