53865

Appears in sequences

• a(n) = 9*binomial(n,4) = 3*n*(n-1)*(n-2)*(n-3)/8.at n=21A060008
• Convoluted convolved Fibonacci numbers G_8^(r).at n=16A089115
• Smallest term in the Hofstadter sequence A005243 having exactly n representations as sum of consecutive earlier terms.at n=21A118166
• Number of n X 4 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 0 1 vertically.at n=17A209646
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^binomial(k+3,4).at n=27A344204
• Numbers that are the sum of four third powers in nine or more ways.at n=16A345146
• Numbers that are the sum of four third powers in exactly nine ways.at n=8A345154
• Odd nonexponential abundant numbers: odd numbers k such that A160135(k) > k.at n=31A348605
• Odd numbers k such that A162296(k) > 2*k.at n=34A357607