7881197
domain: N
Appears in sequences
- a(n) = a(n-1) + a(n-2) - 1 for n > 1, a(0)=3, a(1)=2.at n=33A001612
- Number of restricted circular combinations.at n=31A006499
- Least m such that if r and s in {-F(2*h) + phi*F(2*h-1): h = 1,2,...,n} satisfy r < s, then r < k/m < s for some integer k, where F = A000045 (Fibonacci numbers) and phi = (1+sqrt(5))/2 (golden ratio).at n=16A024851
- a(n) = Sum_{i=0..n} (C(n,i) mod 2)*Fibonacci(2*i).at n=17A051656
- a(n) = floor(tau^n) + 1, where tau = (1 + sqrt(5))/2.at n=33A062724
- a(n) = Lucas(n+1) + (3*(-1)^n - 1)/2.at n=32A074392
- Product of Lucas numbers and inverted Lucas numbers: a(n)=A000032(n)*A075193(n).at n=16A075269
- a(n) = Lucas(4*n+1) + 1, or Lucas(2*n)*Lucas(2*n+1).at n=8A081014
- a(n) = Sum_{k=0..n} Fibonacci(k) + (-1)^k*Fibonacci(k-1).at n=33A097132
- a(n) = Fibonacci(n-1) + Fibonacci(n+1) - (-1)^n.at n=33A098600
- Successively better golden semiprimes.at n=12A165570
- Ceiling(phi^n) where phi = (1+sqrt(5))/2.at n=33A169986
- a(n) = a(n-1) + a(n-2) + (-1)^n, with a(0)=0 and a(1)=1.at n=34A181716
- Partial sums of A005248.at n=16A188378
- a(n) = L(n)*L(n+1), where L = A000032 (Lucas numbers).at n=16A215602