Number of nX4 0,1 arrays with the row and column sums nondecreasing.
A202556
Number of nX4 0,1 arrays with the row and column sums nondecreasing.
Terms
- a(0) =5a(1) =37a(2) =235a(3) =1526a(4) =9325a(5) =57255a(6) =342295a(7) =2048759a(8) =12097875a(9) =71623580a(10) =421070137a(11) =2483305077a(12) =14588495861a(13) =85996521989a(14) =505767515227
External references
- oeis: A202556