Molecular integrals from Fast Fourier Transforms (FFT) instead of recurrences: The McMurchie-Davidson case.We report a closed formula expressing the McMurchie-Davidson (MD) key intermediates {[r](0); rx + ry + rz ≤ L} directly in terms of the set of basic integrals {[0](m); m ≤ L}, without any recurrences.  This formula can be evaluated at O(L) cost per output [r](0) with dense matrix multiplications and Fast Fourier Transforms (FFT). 
Fast Fourier Transforms (FFT)
Molecular integrals from Fast Fourier Transforms (FFT) instead of recurrences: The McMurchie-Davidson case.We report a closed formula expressing the McMurchie-Davidson (MD) key intermediates {[r](0); rx + ry + rz ≤ L} directly in terms of the set of basic integrals {[0](m); m ≤ L}, without any recurrences. 
McMurchie-Davidson