A216715 Triangle of coefficients of polynomials arising from INVERT transform of number of conjugacy classes in group of unitriangular n X n matrices over GF(q).

1, 0, 1, 0, 1, 1, 0, 1, 4, 2, 0, 1, 9, 14, 5, 0, 1, 16, 54, 55, 18, 1

Offset

1,9

Links

Table of n, a(n) for n=1..22.

Marcelo Aguiar, Nantel Bergeron and Nathaniel Thiem, Hopf monoids from class functions on unitriangular matrices, arXiv:1203.1572 [math.CO], 2012. See p. 27.

Example

Triangle begins:
  1
  0 1
  0 1  1
  0 1  4  2
  0 1  9 14  5
  0 1 16 54 55 18 1
  ...

Crossrefs

Sequence in context: A021242 A088393 A121225 * A049430 A055356 A297331

Adjacent sequences: A216712 A216713 A216714 * A216716 A216717 A216718

Keyword

nonn,tabf,more

Author

N. J. A. Sloane, Sep 14 2012

Status

approved