Number of (n+2)X(7+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.

A253509

Number of (n+2)X(7+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.

Terms

    a(0) =1500a(1) =3088a(2) =5692a(3) =10236a(4) =16592a(5) =25988a(6) =38564a(7) =55576a(8) =77680a(9) =106248a(10) =142556a(11) =188308a(12) =245396a(13) =316036a(14) =402740a(15) =508348a(16) =636044a(17) =789376a(18) =972276a(19) =1189080a(20) =1444548a(21) =1743884a(22) =2092756a(23) =2497316a(24) =2964220a(25) =3500648a(26) =4114324a(27) =4813536a(28) =5607156a(29) =6504660

External references