Signed words and permutations, V: a sextuple distribution

We calculate the distribution of the sextuple statistic over the hyperoctahedral group Bn that involves the flag-excedance and flag-descent numbers “fexc” and “fdes, ” the flag-major index “fmaj, ” the positive and negative fixed point numbers “fix+ ” and “fix− ” and the negative letter number “neg. ” Several specializations are considered. In particular, the joint distribution for the pair (fexc, fdes) is explicitly derived. 1