47580

Appears in sequences

• a(n+1) = a(n) * (a(n-1) + 1).at n=8A005831
• Maximal length of rook tour on an n X n+3 board.at n=39A152134
• Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.at n=6A252213
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.at n=1A252218
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.at n=29A252219
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7.at n=34A252219
• Magic sums of 4 X 4 magic squares composed of odd squares.at n=25A271582
• Number of inequivalent ways of placing 2 nonattacking rooks on n X n board up to rotations and reflections of the board.at n=29A307304
• Numbers k such that psi(k^2) = k, psi = A002322; indices of 1 in A341857.at n=40A341858
• Number of edge cuts in the n-double cone graph.at n=4A377759