Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.

A252302

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.

Terms

    a(0) =4349a(1) =3171a(2) =3902a(3) =5230a(4) =9368a(5) =14515a(6) =20910a(7) =42082a(8) =66739a(9) =98782a(10) =217314a(11) =348739a(12) =531390a(13) =1284226a(14) =2070979a(15) =3235390a(16) =8478402a(17) =13717315a(18) =21847614a(19) =60676930a(20) =98374723a(21) =158681662a(22) =456864834a(23) =741606979a(24) =1205129790a(25) =3540805186a(26) =5751409219

External references