63245984

Appears in sequences

• a(n) = Fibonacci(n+3) - 2.at n=36A001911
• Expansion of (1-x)/(1-2*x^2-x^3).at n=41A078024
• a(n) = Fibonacci(4*n+3) - 2, or Fibonacci(2*n)*Lucas(2*n+3).at n=9A081013
• a(2)=1. a(n) = the largest integer coprime to a(n-1) and less than the n-th Fibonacci number.at n=37A157605
• Continued fraction expansion of product_{n>=0} (1-sqrt(5)*[sqrt(5)-2]^{4n+3})/(1-sqrt(5)*[sqrt(5)-2]^{4n+1}).at n=23A221076
• Number of compositions of n into parts 1 and 2 with both parts present.at n=35A245738