104445

Appears in sequences

• a(n) = floor(n*(n-1)*(n-2)*(n-3)/21).at n=40A011931
• Numbers k such that phi(m) = 96*k+2 has no solution.at n=14A071624
• Number of pairs of intersecting diagonals in the interior and exterior of a regular n-gon.at n=30A211380
• Number of intersections of diagonals in the interior and exterior of a regular n-gon.at n=30A211383
• Number of nonnegative integers with property that their base 9/7 expansion (see A024655) has n digits.at n=39A245429
• a(n) is the first number that has exactly n anagrams that each have exactly n prime divisors, counted by multiplicity.at n=8A369203