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Representation degeneracies for Ramond strings.
(Formerly M1024)
0

%I M1024 #15 Jan 14 2015 13:29:23

%S 1,0,2,4,6,12,22,36,62,104,166,268,426,660,1022,1564,2358,3540,5266,

%T 7756,11362,16524,23854,34252,48890,69368,97942,137588,192314,267628,

%U 370798,511524,702886

%N Representation degeneracies for Ramond strings.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H T. L. Curtright and C. B. Thorn, <a href="http://dx.doi.org/10.1016/0550-3213(86)90525-0">Symmetry patterns in the mass spectra of dual string models</a>, Nuclear Phys. B 274 (1986), 520-588.

%F G.f.: Product (1 - x^k)^(-c(k)), c(k) = 0, 2, 4, 3, 4, 2, 4, 2, 4, 2, ....

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_.