219852

Appears in sequences

• Numbers n such that phi(n) + phi(n+1) = sigma(n)/2.at n=24A076647
• Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.at n=6A260536
• Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.at n=6A260543
• Convolve Fibonacci, Pell and bronze Fibonacci numbers.at n=12A309717