Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 7 array.
A220031
Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 7 array.
Terms
- a(0) =7a(1) =18a(2) =55a(3) =137a(4) =302a(5) =613a(6) =1165a(7) =2094a(8) =3587a(9) =5893a(10) =9335a(11) =14323a(12) =21368a(13) =31097a(14) =44269a(15) =61792a(16) =84741a(17) =114377a(18) =152167a(19) =199805a(20) =259234a(21) =332669a(22) =422621a(23) =531922a(24) =663751a(25) =821661a(26) =1009607a(27) =1231975a(28) =1493612a(29) =1799857
External references
- oeis: A220031