Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
A258889
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
Terms
- a(0) =3036a(1) =4489a(2) =6072a(3) =8100a(4) =12804a(5) =20164a(6) =33252a(7) =54756a(8) =88312a(9) =141376a(10) =227568a(11) =364816a(12) =583204a(13) =929296a(14) =1483776a(15) =2365444a(16) =3775584a(17) =6022116a(18) =9624864a(19) =15382084a(20) =24627120a(21) =39438400a(22) =63264812a(23) =101525776a(24) =163156600a(25) =262310416a(26) =422211920a(27) =679853476
External references
- oeis: A258889