271444

Appears in sequences

• a(n) = a(n-1) + a(n-2) - 1 for n > 1, a(0)=3, a(1)=2.at n=26A001612
• a(n) = Lucas(2*n) + 1.at n=13A065034
• a(n) = Lucas(n) + (-1)^n.at n=26A099925
• Numbers having three 1's in their base-phi representation.at n=14A104626
• Duplicate of A065034.at n=13A107328
• a(n) = L(3*n)/L(n), where L(n) = Lucas number.at n=13A110391
• Number of maximal independent vertex sets (and minimal vertex covers) in the n-Moebius ladder graph.at n=23A290608
• Number of odd chordless cycles in the 2n-Moebius ladder graph.at n=13A301773