T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

A250927

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

Terms

    a(0) =58a(1) =344a(2) =344a(3) =2007a(4) =4148a(5) =2007a(6) =11693a(7) =50722a(8) =50722a(9) =11693a(10) =68160a(11) =628146a(12) =1320397a(13) =628146a(14) =68160a(15) =397432a(16) =7811640a(17) =34521887a(18) =34521887a(19) =7811640a(20) =397432a(21) =2317569a(22) =97205912a(23) =899626256a(24) =1887760064a(25) =899626256a(26) =97205912a(27) =2317569a(28) =13514765

External references