20633237

Properties

Appears in sequences

• Expansion of (1+x^2)/(1-2*x+x^3).at n=33A014739
• a(n) = L(2*n+1) - 2, where L is A000032.at n=17A256233
• Primes of the form L(k)*L(k+1)-1, where L(k) is the k-th Lucas number (A000032).at n=5A271429
• Prime numbersat n=1308186