T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2.

A221341

T(n,k)=Number of nXk arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =13a(5) =0a(6) =0a(7) =85a(8) =85a(9) =0a(10) =0a(11) =758a(12) =1828a(13) =758a(14) =0a(15) =0a(16) =5736a(17) =49197a(18) =49197a(19) =5736a(20) =0a(21) =0a(22) =44186a(23) =1160820a(24) =4072557a(25) =1160820a(26) =44186a(27) =0a(28) =0a(29) =335511

External references