Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 7 array.
A219501
Number of n X 7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 7 array.
Terms
- a(0) =7a(1) =13a(2) =45a(3) =126a(4) =281a(5) =550a(6) =995a(7) =1703a(8) =2793a(9) =4424a(10) =6804a(11) =10200a(12) =14949a(13) =21470a(14) =30277a(15) =41993a(16) =57365a(17) =77280a(18) =102782a(19) =135090a(20) =175617a(21) =225990a(22) =288071a(23) =363979a(24) =456113a(25) =567176a(26) =700200a(27) =858572a(28) =1046061a(29) =1266846
External references
- oeis: A219501