T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.
A253510
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =132a(1) =260a(2) =260a(3) =428a(4) =472a(5) =428a(6) =636a(7) =784a(8) =784a(9) =636a(10) =884a(11) =1196a(12) =1332a(13) =1196a(14) =884a(15) =1172a(16) =1712a(17) =2088a(18) =2088a(19) =1712a(20) =1172a(21) =1500a(22) =2340a(23) =3052a(24) =3400a(25) =3052a(26) =2340a(27) =1500a(28) =1868a(29) =3088
External references
- oeis: A253510