14515200

Appears in sequences

• a(n) = n!*(n+2)!/2.at n=6A010791
• Denominator of probability that 2 elements of S_n chosen at random (with replacement) generate S_n.at n=11A040174
• Denominators of coefficients in Taylor series for exp(sin(x)).at n=12A047688
• Triangle read by rows, the Bell transform of n!*binomial(4,n) (without column 0).at n=47A049424
• E.g.f. 1/((1-x)(1-x^3)).at n=10A052569
• a(0) = 0, a(n) = 4*n! for n > 0.at n=10A052578
• E.g.f. (1-x)/(1-x-x^4).at n=10A052581
• Expansion of e..g.f.: (1-x)/(1-x-x^2-x^3+x^4).at n=9A052588
• E.g.f. (1-x^3)/(1-x^2-x^3).at n=10A052607
• Expansion of e.g.f. x/((1-x)*(1-x^3)).at n=10A052688
• Commuting permutations: number of ordered triples of permutations f, g, h in Symm(n) which all commute.at n=8A072169
• a(n) = n! * (n+1)! * (n+2)! * (n+3).at n=4A084259
• 1/1, 2*3/lcm(2,3), 4*5*6/lcm(4,5,6), 7*8*9*10/lcm(7,8,9,10), ...at n=13A093453
• Denominator of the O(x^2) term in the Maclaurin series of the square of the Jacobi polynomial P^{a,b}_n(z) about z=1-x for real positive x.at n=5A108214
• The first four terms of the sequence are doubled, then those numbers are tripled and then those numbers are quadrupled, etc.at n=37A115425
• First four terms of the sequence are doubled, then those numbers are tripled and then those numbers are quadrupled, etc.at n=39A117826
• Product of the digital sums of n for all the bases 2 to n (a 'digital-sum factorial').at n=13A131384
• Triangular sequence of coefficients from the expansion of the derivative of the Bernoulli polynomial function: p(x,t) = t*exp(x*t)/(exp(t)-1); q(x,t) = p'(x,t) = dp(x,t)/dt.at n=48A137777
• Triangular sequence of coefficients of the expansion of p(x,t) = exp(x*t)*(1 + t^2)^2/(t*(1 - t^2)).at n=54A137785
• Where records occur in A152235.at n=13A152453