580171684

Appears in sequences

• a(n) = 5*a(n-1) - a(n-2), with a(1)=1, a(2)=4.at n=13A004253
• Numerators in continued fraction [0; 1, 3, 1, 3, 1, 3, ...].at n=26A136210
• Denominators in continued fraction [0; 1, 3, 1, 3, 1, 3, ...].at n=25A136211