4870848
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=32A001612
- a(n) = 5*F(n)^2 + 3*(-1)^n where F(n) are the Fibonacci numbers A000045.at n=16A047946
- a(n) = Lucas(2*n) + 1.at n=16A065034
- a(n) = Lucas(n) + (-1)^n.at n=32A099925
- Numbers having three 1's in their base-phi representation.at n=17A104626
- Duplicate of A065034.at n=16A107328
- a(n) = 1 + A_n(n), or a(n) = -1 if sequence A_n is not defined up to index n.at n=31A107357
- Number of maximal independent vertex sets (and minimal vertex covers) in the n-Moebius ladder graph.at n=29A290608
- a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 4, a(3) = 8.at n=31A295674
- Number of odd chordless cycles in the 2n-Moebius ladder graph.at n=16A301773