A028526 Character of extremal vertex operator algebra of rank 17/2.

1, 0, 255, 221, 4216, 4114, 35666, 37536, 221085, 244545, 1112803, 1278196, 4849046, 5728337, 18897557, 22823928, 67443437, 82879982, 223825825, 278900776, 698899427, 880590786, 2071022977, 2632885030, 5864089905, 7508811906, 15951383169, 20543782345

Offset

0,3

References

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

Links

Table of n, a(n) for n=0..27.

G. Höhn (gerald(AT)math.ksu.edu), Selbstduale Vertexoperatorsuperalgebren und das Babymonster, Doctoral Dissertation, Univ. Bonn, Jul 15 1995 (pdf, ps).

Formula

G.f.: x^(2*r/24) * (B(x)^(2*r) - 2*r*B(x)^(2*r-24) where B(x) = x^(-1/24) * Product_{k>=0} (1+x^(2*k+1)) = x^(-1/24) * A000700 and r = 17/2. - Sean A. Irvine, Feb 29 2020

Crossrefs

Cf. A000700.

Sequence in context: A145587 A283188 A334353 * A132828 A296899 A257021

Adjacent sequences: A028523 A028524 A028525 * A028527 A028528 A028529

Keyword

nonn,easy

Author

N. J. A. Sloane.

Extensions

More terms from Sean A. Irvine, Feb 29 2020

Status

approved