410547

Appears in sequences

• Fibonacci sequence beginning 3, 7.at n=24A022120
• Number of (n+2) X (2+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.at n=27A252248
• a(n) = k*Fibonacci(2*n+1) + (k+1)*Fibonacci(2*n), where k=3.at n=12A271357