29745716

Appears in sequences

• a(n) = (2*n+3)!/(6*n!*(n+1)!).at n=10A002802
• Expansion of 1/(1-4*x)^(7/2).at n=9A020918
• Denominators of third-order harmonic numbers (defined by Conway and Guy, 1996).at n=22A124838
• Denominator of Sum_{k=1..n} k*H_{n+k} where H_m = Sum_{i=1..m} 1/i.at n=24A144655
• Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=6.at n=11A145620
• a(n) = (8*n)!*n!/((4*n)!*(3*n)!*(2*n)!).at n=3A211420
• Denominators of Integral_{x=0..1} P(n, x)^3 with P(n, x) = Sum_{k=0..n}(-1)^(n-k)* Stirling2(n, k)*k!*x^k.at n=9A291450
• Square array read by ascending antidiagonals: T(n,k) = [x^(3*k)] ( (1 + x)^(n+3)/(1 - x)^(n-3) )^k for n, k >= 0.at n=39A364519