71050

Appears in sequences

• Number of -n..n arrays x(0..4) of 5 elements with zero sum and nonzero second and third differences.at n=8A200206
• Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 2 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 2 3 4 6 or 7.at n=9A252272
• Decimal representation of the middle column of the "Rule 25" elementary cellular automaton starting with a single ON (black) cell.at n=16A266446