44844800

Appears in sequences

• Number of permutations sigma of [3n] without fixed points such that sigma^3 = Id.at n=5A052502
• Duplicate of A052502.at n=5A060079
• Generalized Stirling2 array (-1,2)S2. Irregular triangle a(n, m) for n >= 1 and 2 <= m <= 2*n.at n=25A091752
• a(n) = product of first n integers not divisible by 3.at n=9A111394
• Triangle, read by rows, where T(n,k) = n!/(k!*(n-3*k)!*3^k) for n>=3*k>=0.at n=50A118931
• Number T(n,k) of permutations on n elements with exactly k 3-cycles; triangle read by rows.at n=44A186526
• Number T(n,k) of permutations on n elements with exactly k 3-cycles; triangle read by rows.at n=50A186526
• The Gauss factorial n_3!.at n=14A232980
• The Gauss factorial n_3!.at n=15A232980
• a(n) = Product_{k=0..n} binomial(4*k,k).at n=4A262261
• Triangle of generalized Stirling numbers of the second kind S(n,k) associated with the generalized Bell numbers A271049(n); S(n,k) = Sum_{j=0..k} (-1)^(k-j)*binomial(k,j)*Gamma((j+2)/3)*Gamma(3*n+j-1)/(Gamma(j)*Gamma(n+(j-1)/3))/(3^(n-1)*k!).at n=21A271204
• a(n) = Product_{k=0..n} binomial(k*n,k).at n=4A272093
• Expansion of e.g.f. exp( Sum_{k>=0} x^(5*k+3) / (5*k+3) ).at n=15A365974
• Table read by antidiagonals: T(n,k) = (n*k)!/(n^k*k!), n >=1, k >= 0.at n=30A377597