4652881237

Appears in sequences

• a(n) = a(n-1) + 4a(n-2) - 4a(n-3).at n=32A136326
• Decimal representation of the middle column of the "Rule 91" elementary cellular automaton starting with a single ON (black) cell.at n=32A267045
• a(n) = 4^(n+1) + (4^n-1)/3.at n=15A330246