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Number of labeled Hugenholtz diagrams with n nodes.
2

%I #23 Jan 14 2024 12:39:01

%S 1,3,39,840,27300,1232280,73564470,5607372960,531209621880

%N Number of labeled Hugenholtz diagrams with n nodes.

%D P. D. Stevenson, "Automatic Generation of Vacuum Amplitude Many-Body Perturbation Series", Int. J. Mod. Phys. C 14, 1135 (2003).

%D A. Szabo and N. S. Ostlund, "Modern Quantum Chemistry", Dover, Mineola, New York (1996).

%H C. Drischler, K. Hebeler, and A. Schwenk, <a href="https://arxiv.org/abs/1710.08220">Chiral interactions up to N3LO and nuclear saturation</a>, arXiv:1710.08220 [nucl-th], 2017.

%H Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a064/A064732.java">Java program</a> (github)

%H A. Tichai, J. Langhammer, S. Binder, and R. Roth, <a href="http://arxiv.org/abs/1601.03703">Hartree-Fock Many-Body Perturbation Theory for Nuclear Ground-States</a>, arXiv preprint arXiv:1601.03703 [nucl-th], 2016.

%Y Cf. A057572.

%K hard,nonn,more

%O 2,2

%A _Paul Stevenson_, Oct 17 2001

%E a(9)-a(10) from _Sean A. Irvine_, Jun 21 2022