20345052

Appears in sequences

• Number of walks of length n between two vertices on an icosahedron at distance 1.at n=11A030517
• Number of walks of length n between two vertices on an icosahedron at distance 2.at n=11A030518
• Smallest k > 0 such that n*k + 1 is an n-th power.at n=11A076943
• a(n) = floor(5^n/n).at n=11A129795
• Floor((5^n-1)/n).at n=11A225586