87096

Appears in sequences

• Numbers k such that sum of 9th powers of divisors of k is divisible by the square of Euler-phi of k.at n=11A094468
• Expansion of x/((1-x)^3*(1-x^2)^3*(1-x^3)).at n=28A164680
• Number of 3-step one or two collinear space at a time queen's tours on an n X n board summed over all starting positions.at n=20A187028
• G.f. for Ehrhart quasi-polynomials for hyperplane arrangements of type E_6.at n=40A210634
• Logarithmic transform of odd primes.at n=6A353155
• G.f. satisfies A(x) = 1 + x/(1 - x^4) * A(x/(1 - x^4)).at n=21A360891