A014678 Poincaré series [or Poincare series] (or Molien series) for mod 2 cohomology of Lyons group.

1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 2, 2, 1, 1, 2, 2, 3, 3, 2, 3, 4, 4, 4, 5, 5, 5, 5, 5, 8, 7, 6, 9, 9, 8, 9, 11, 11, 11, 12, 12, 14, 14, 13, 16, 18, 17, 18, 19, 19, 21, 21, 22, 26, 25, 23, 27, 30, 28, 30, 33, 33, 34, 34

Offset

0,15

Links

Table of n, a(n) for n=0..66.

A. Adem, Recent developments in the cohomology of finite groups, Notices Amer. Math. Soc., 44 (1997), 806-812.

Maple

t1 + t^7/((1-t^4)*(1-t^6)*(1-t^7)); where t1 = Poincaré series [or Poincare series] in A014671.

Crossrefs

Sequence in context: A274369 A055091 A332380 * A332381 A349195 A164516

Adjacent sequences: A014675 A014676 A014677 * A014679 A014680 A014681

Keyword

nonn

Author

Alejandro Adem (adem(AT)math.wisc.edu)

Status

approved