1916006400

Appears in sequences

• a(n) = n!*(n-4)/2.at n=8A034865
• a(n) = n!*(n-4)/2, n > 4, and a(4) = 4.at n=8A034866
• a(0) = 0, a(n) = 4*n! for n > 0.at n=12A052578
• E.g.f. 1/((1-x)(1-x^4)).at n=12A052614
• E.g.f. (1-x)/(1-x-x^5).at n=12A052627
• Expansion of e.g.f. x/((1-x)*(1-x^3)).at n=12A052688
• LCM of totients of binomial coefficients C(n,j), j = 0..n.at n=30A064451
• a(1)=1. a(n+1) = n!/lcm(a(1),a(2),...,a(n)).at n=24A131120
• Number of cyclic Latin squares of order n.at n=11A338522
• Distinct values of the least common multiple of initial segments of numbers of least prime signature (A025487).at n=21A343458