37563930domain: NAppears in sequencesa(n) = T(2*n-1, n-1), T given by A026519.at n=13A026528a(n) = T(n, floor(n/2)), T given by A026519.at n=27A026530a(n) = T(n, floor(n/2)), where T is given by A026552.at n=27A026563