29781

Appears in sequences

• a(n) = n^3 - floor( n/3 ).at n=31A002901
• Sum over each antidiagonal of A248011.at n=12A248016
• Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4.at n=3A252024
• Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4.at n=3A252028
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4.at n=24A252032
• Number of unlabeled balanced semi-binary rooted trees with n nodes.at n=32A320270