122506

Appears in sequences

• Positive numbers k such that k and 4*k are anagrams in base 9 (written in base 9).at n=34A023081
• Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x.at n=28A048132
• Numbers n such that 3^n-2^(n-1) is prime.at n=41A095906
• Number of (n+2) X (3+2) 0..3 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 4 6 or 7.at n=5A252264
• Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 4 6 or 7.at n=2A252267
• 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 2 3 4 6 or 7.at n=30A252269
• 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 2 3 4 6 or 7.at n=33A252269