Number of (n+1)X(3+1) 0..1 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
A236518
Number of (n+1)X(3+1) 0..1 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.
Terms
- a(0) =160a(1) =1256a(2) =9212a(3) =63208a(4) =421516a(5) =2728079a(6) =17385844a(7) =109182283a(8) =680017778a(9) =4204683204a(10) =25887754654a(11) =158825752617a(12) =972360337075
External references
- oeis: A236518