Number of (n+1) X (2+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
A253391
Number of (n+1) X (2+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
Terms
- a(0) =44a(1) =102a(2) =143a(3) =197a(4) =250a(5) =320a(6) =391a(7) =477a(8) =564a(9) =666a(10) =769a(11) =887a(12) =1006a(13) =1140a(14) =1275a(15) =1425a(16) =1576a(17) =1742a(18) =1909a(19) =2091a(20) =2274a(21) =2472a(22) =2671a(23) =2885a(24) =3100a(25) =3330a(26) =3561a(27) =3807a(28) =4054a(29) =4316
External references
- oeis: A253391