66637

Appears in sequences

• a(n) = ((n+1)^n + (n-1)^n)/2.at n=6A062024
• 6th binomial transform of (1,0,1,0,1,.....), A059841.at n=6A081188
• Square number array read by antidiagonals.at n=34A084061
• Numbers z such that x^2 + y^6 = z^2 (with positive integers x and y) and gcd(x, y, z) = 1.at n=15A293691
• Array read by ascending antidiagonals: A(n, k) = n!*[x^n] Li(-k, 1 - exp(-4*x))/(4*sinh(x)), where Li(n, z) is the polylogarithm function.at n=29A345394
• Sum of terms of even index in the binomial decomposition of n^(n-1).at n=6A345632
• a(n) is the denominator of the relativistic sum of n velocities of 1/n, in units where the speed of light is 1.at n=5A348132
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(k+3,4) * floor(n/k).at n=40A366939