372736

Appears in sequences

• a(n) = n*(n+1)*2^(n-2).at n=13A001788
• Expansion of 1/((1-4*x)*(1-12*x)).at n=5A016159
• Fourth unsigned column of Lanczos triangle A053125 (decreasing powers).at n=5A054322
• Let P(n,X) = Product_{i=1..2n+1} (X - 1/cos(Pi*k/(2n+1))); then P(n,X) is a polynomial with integer coefficients. Sequences gives maximum values of absolute values of coefficients of P(n,X).at n=8A075581
• A transform of C(n,3).at n=11A082138
• Triangle T(n, k) = binomial(2*n-k, k)*(-4)^(n-k), read by rows.at n=38A117438
• A triangular sequence of coefficients of a partition two types polynomials; of Chebyshev of the first kind polynomials (A053120) and Hermite polynomials (A060821): p(x,n) = T(x,n)*H(x,n).at n=59A137456
• Triangle read by rows: Number of (2n+1)-step self-avoiding walks on diamond lattice ending at point with x = 2k+1.at n=33A227716
• Sheffer triangle S2[4,1] = (exp(x), exp(4*x) - 1).at n=34A285061
• a(n) = [x^n] x * Product_{j>=0} (1 + x^(2^j) + n*x^(2^(j+1))).at n=45A342643
• Positions of records in A116489.at n=38A342868
• Triangle read by rows: T(n,k) = 4^k*binomial(n+k, n-k) with 0 <= k <= n.at n=42A373547