%I #10 Mar 25 2013 20:23:59

%S 1,0,1,1,2593096794,12756091394048,9529321553850114,

%T 2622941179303182336,378428749730548169825,34379738369586404335616,

%U 2195434131999069551809023,105922359560085772186288128,4060690624559117077119316890

%N Character of extremal vertex operator algebra of rank 72.

%D G. Hoehn, Selbstduale Vertexoperatorsuperalgebren und das Babymonster, Bonner Mathematische Schriften, Vol. 286 (1996), 1-85.

%D F. L. Williams, The role of the Patterson-Selberg zeta function of a hyperbolic cylinder in three-dimensional gravity with a negative cosmological constant, A Window Into Zeta and Modular Physics, MSRI Publications, Vol. 57, 2010.

%H G. Hoehn (gerald(AT)math.ksu.edu), Selbstduale Vertexoperatorsuperalgebren und das Babymonster, Doctoral Dissertation, Univ. Bonn, Jul 15 1995 (<a href="http://www.math.ksu.edu/~gerald/papers/dr.pdf">pdf</a>, <a href="http://www.math.ksu.edu/~gerald/papers/dr.ps.gz">ps</a>).

%F For n>=4, a(n)=A000521(m)+3*sum_{d>0, d|3, d|m}(A000521(3 * m / d^2)/d) where m=n-3. - _Sean A. Irvine_, Mar 24 2013

%K nonn,easy

%O 0,5

%A _N. J. A. Sloane_.

%E More terms from _Sean A. Irvine_, Mar 24 2013