Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 3 X n array.
A219916
Number of 3 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal, 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) =6a(1) =7a(2) =24a(3) =64a(4) =147a(5) =308a(6) =606a(7) =1144a(8) =2097a(9) =3761a(10) =6628a(11) =11503a(12) =19682a(13) =33216a(14) =55293a(15) =90778a(16) =146960a(17) =234565a(18) =369105a(19) =572645a(20) =876083a(21) =1322052a(22) =1968568a(23) =2893564a(24) =4200467a(25) =6024993a(26) =8543354a(27) =11982091a(28) =16629768a(29) =22850784
External references
- oeis: A219916