146376

Appears in sequences

• Number of ways of folding a strip of n labeled stamps.at n=11A000136
• Theta series of lattice D3 tensor D3 (dimension 9, det. 4096, min. norm 4).at n=18A033693
• a(n) = F(n)/Product_{p=primes} F(p^(m_{n,p})), where p^(m_{n,p}) is highest power of p dividing n, m= nonnegative integer and F(k) is the k-th Fibonacci number.at n=35A113196
• Erroneous version of A000136.at n=11A195645
• a(n) = (1/3)*(Lucas(3*n) - Lucas(n)).at n=8A273622
• G.f.: Sum_{k>=0} A000041(k)^2 * x^k / Sum_{k>=0} A000009(k) * x^k.at n=21A304988