-2570

Appears in sequences

• Inverse Euler transform of primes.at n=29A030010
• a(n) = -Sum_{d|n} (-n/d)^d.at n=27A076717
• G.f. A(x) satisfies: 1 = ...((((A(x) - 2*x)^2 - 4*x^2)^2 - 8*x^3)^2 - 16*x^4)^2 -... - 2^n*x^n)^2 -...., a series of infinite nested squares.at n=19A274850
• Antidiagonal-sums of the array A377046(n,k) = n-th term of k-th differences of nonsquarefree numbers (A013929).at n=12A377047
• Expansion of e.g.f. (1 - 3*x*exp(x))^(2/3).at n=5A380030