A323283 Euler characteristic (H_*(h_{oo,1}^+)_{2n}^{Sp}) of the Sp-invariant homology group of the Lie algebra h_{oo,1}^+ of weight 2n.

1, 2, 4, 6, 10, 16, 23, 13, -96, -1299

Offset

1,2

Links

Table of n, a(n) for n=1..10.

Shigeyuki Morita, Takuya Sakasai, and Masaaki Suzuki, Integral Euler characteristic of Out(F_11), arXiv:1405.4063 [math.AT], 2014. See Th. 1.1 and the proof of Th. 2.2..

Crossrefs

Sequence in context: A131882 A073150 A076529 * A279715 A132212 A327047

Adjacent sequences: A323280 A323281 A323282 * A323284 A323285 A323286

Keyword

sign,more

Author

N. J. A. Sloane, Jan 13 2019

Status

approved