Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
A253530
Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
Terms
- a(0) =25165a(1) =71333a(2) =142679a(3) =398710a(4) =745281a(5) =1744459a(6) =3362641a(7) =7208222a(8) =14186738a(9) =29111786a(10) =57621515a(11) =115695867a(12) =228900596a(13) =455068941a(14) =899753742a(15) =1782776025a(16) =3527257807a(17) =6989363364a(18) =13852817626a(19) =27493383527a(20) =54609926099a(21) =108599738807
External references
- oeis: A253530