%I #11 Jan 27 2024 09:23:23
%S 1,1,1,24,293,9219,787444
%N a(n) = number of integer solutions to 1 <= x1 < x2 < ... < xn to 1/x1 + ... + 1/xn = (1 - 1/x1) * ... * (1 - 1/xn).
%C For any n, A369470(n) >= a(n) >= 1 (see A369607).
%H Max Muller et al., <a href="https://mathoverflow.net/q/462605">The diophantine equation \sum_{n=1}^{N} \frac{1}{x_{n}} = \prod_{k=1}^{N} \left(1-\frac{1}{x_{k}} \right)</a>, MathOverflow, 2024.
%Y Cf. A006585, A007850, A054377, A085098, A118086, A158649, A164014, A343074, A369470, A369607.
%K nonn,more
%O 1,4
%A _Max Alekseyev_, Jan 23 2024