Europ. J. Combinatorics (1980) 1, p. 283-287
George Andrews and Dominique Foata
Congruences for the q-secant Numbers
Abstract.
The q-secant number E_(2n)(q) is shown to be congruent to
q^(2n(n-1)) (its term of highest degree)
mod (q + 1)^2 by using the combinatorial set-up of alternating permutations.
foata@unistra.fr
The following version is available: