Number of (n+2) X (4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

A252071

Number of (n+2) X (4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

Terms

    a(0) =375a(1) =1135a(2) =5085a(3) =21862a(4) =92225a(5) =391934a(6) =1669294a(7) =7114867a(8) =30309042a(9) =129016031a(10) =549319037a(11) =2339547000a(12) =9963141845a(13) =42425232250a(14) =180661430026a(15) =769335984173

External references