65869

Appears in sequences

• Expansion of (-1+x+2*x^2-6*x^3+x^4+x^5) / ((x-1)*(x^2-x+1)*(x^2-2*x-1)*(x+1)^2).at n=13A109781
• Numbers m such that k = m*23^2 divides 3^(k-1) - 2^(k-1).at n=22A130058
• Semiprimes k = pq such that p^k == p (mod k) and q^k == q (mod k).at n=39A294169
• Expansion of Sum_{k>=0} x^k / (1 - k*x^3)^(k+1).at n=16A360783
• Numerators of the partial sums of the reciprocals of Pillai's arithmetical function (A018804).at n=8A379363