1029600

Appears in sequences

• G.f.: Sum_{n=-oo..+oo} (1 + x^n)^n / (1 - x^n)^n, ignoring the constant term.at n=71A292180
• a(n) = Product_{i=1..n} floor(5*i/3).at n=7A319950
• Table read by ascending antidiagonals: T(n, k) is the maximum number of quasi k-gons that are not k-gons in a finite projective plane of order n, with k >= 3.at n=8A342307
• The smallest number k for which exactly n of its divisors are digitally balanced numbers in base 3 (A049354).at n=18A372146
• Vandermonde determinant of the divisors of n.at n=25A389552