192900153617
domain: N
Appears in sequences
- For n > 1: a(n) = a(n-1)^3 + 3a(n-1)^2 - 3; a(0) = 1, a(1) = 2.at n=4A002814
- a(n) = F(2n+1) + F(2n-1) - 1.at n=27A005592
- Pierce expansion of (3 - sqrt(5))/2.at n=6A006276
- a(n) = 5*F(n)^2 + 3*(-1)^n where F(n) are the Fibonacci numbers A000045.at n=27A047946
- a(n) = Lucas(3*n) - 1.at n=18A100233
- Pierce expansion of 1/phi.at n=7A118242
- Odd terms in A014217.at n=27A142718
- Continued fraction expansion for exp( Sum_{n>=1} 1/(n*A014448(n)) ), where A014448(n) = (2+sqrt(5))^n + (2-sqrt(5))^n.at n=26A174506
- a(n) = numerator of Sum_{i=1..n} binomial(2n-i-1,i-1)/i.at n=26A175385
- Numbers of the form Fibonacci(p^{k+1})/Fibonacci(p^k) where p are primes, k>=1.at n=9A181419
- Numbers of the form Fibonacci(p^c)/Fibonacci(p^b), where p is some prime and 1<=b<c are two integer exponents.at n=17A181420
- Partial sums of A215602.at n=26A215580
- a(n) = Lucas(2*n) + 2*(-1)^n + 1.at n=26A366508