725760

Appears in sequences

• Sum ((-1)^(i+1)*binomial(n,i)*2^i*(2*n-1)!,i=1..n) for n odd.at n=2A006523
• Triangle of coefficients in expansion of (1+12x)^n.at n=32A013619
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*12^j.at n=19A038278
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*1^j.at n=31A038327
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*7^j.at n=16A038333
• Value of phi in arithmetic progression of at least 5 terms having the same value of phi in A050515.at n=19A050517
• 4*Denominator of S(n)/Pi^n, where S(n) = Sum_{k=-inf..+inf} ((4k+1)^(-n)).at n=9A050971
• Triangle read by rows: T(n,k) = n!*k.at n=37A051683
• E.g.f. (2+x+x^2)/((1-x)(1+x+x^2)).at n=9A052579
• Expansion of e.g.f. x*(2+x)/(1-x^2).at n=9A052612
• Expansion of e.g.f. (3+2*x)/(1-x^2).at n=9A052616
• E.g.f. x(1-x)^2/(1-3x+x^2).at n=7A052623
• Expansion of e.g.f. (2+x^3-x^4)/(1-x).at n=9A052628
• Expansion of e.g.f. x^2*(2+x-x^2)/(1-x).at n=9A052642
• E.g.f. 2*x^2*(1+x-x^2)/(1-x).at n=9A052645
• Expansion of e.g.f. (1-x^2)/(1-x^2-x^3).at n=9A052679
• Expansion of e.g.f. 2*x^4/(1-x).at n=9A052683
• E.g.f.: -x^5*log(1-x).at n=10A052794
• a(0) = 0; a(n) = 2*n! (n >= 1).at n=9A052849
• Denominator of expected length of longest increasing subsequence of a permutation of length n.at n=9A054677