Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.

A253508

Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.

Terms

    a(0) =1172a(1) =2340a(2) =4248a(3) =7396a(4) =11740a(5) =17888a(6) =25988a(7) =36632a(8) =50248a(9) =67508a(10) =89120a(11) =115940a(12) =148936a(13) =189208a(14) =237992a(15) =296668a(16) =366768a(17) =449984a(18) =548176a(19) =663380a(20) =797816a(21) =953896a(22) =1134232a(23) =1341644a(24) =1579168a(25) =1850064a(26) =2157824a(27) =2506180a(28) =2899112a(29) =3340856

External references