Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3 X n array.
A219884
Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3 X n array.
Terms
- a(0) =10a(1) =21a(2) =47a(3) =129a(4) =292a(5) =600a(6) =1158a(7) =2148a(8) =3863a(9) =6784a(10) =11679a(11) =19763a(12) =32938a(13) =54144a(14) =87860a(15) =140803a(16) =222883a(17) =348483a(18) =538145a(19) =820756a(20) =1236342a(21) =1839593a(22) =2704258a(23) =3928566a(24) =5641847a(25) =8012546a(26) =11257843a(27) =15655113a(28) =21555482a(29) =29399758
External references
- oeis: A219884