A279930 - OEIS

For a(6) = 360 to a(85) = 321253732800, the last term known today, there are 80 successive highly composite numbers that are also highly Brazilian numbers.

If beta(n) is the number of Brazilian representations of n, as in A284758, we have the following relations:

1) for a(k) = m with k <= 85 except 1, 9, 20 and 47, tau(m) = 2*beta(m) + 2, but,

2) for a(1) = 1, tau(1) = 2*beta(1) + 1, because beta(1) = 0, and,

3) for a(9) = 1260, a(20) = 50400 and a(47) = 4324320, tau(m) = 2*beta(m) + 4 because 1260 = 35*36, 50400 = 224*225 and 4324320 = 2079*2080 are oblong numbers.