Number of (n+1) X (1+1) 0..1 arrays with the difference of the upper median and minimum value of each 2 X 2 subblock in lexicographically nondecreasing order rowwise and columnwise.
A235653
Number of (n+1) X (1+1) 0..1 arrays with the difference of the upper median and minimum value of each 2 X 2 subblock in lexicographically nondecreasing order rowwise and columnwise.
Terms
- a(0) =16a(1) =52a(2) =160a(3) =476a(4) =1392a(5) =4020a(6) =11520a(7) =32828a(8) =93200a(9) =263892a(10) =745824a(11) =2105116a(12) =5936304a(13) =16729076a(14) =47122368a(15) =132690428a(16) =373551952a(17) =1051454740a(18) =2959233056a(19) =8327823580a(20) =23434631152a(21) =65942655540a(22) =185550334592a(23) =522092927932
External references
- oeis: A235653