-682

Appears in sequences

• Convolution of A073145 with A056594.at n=19A075419
• Expansion of (1-x)/(1+x+2*x^2+2*x^3).at n=22A078052
• A generalized Jacobsthal sequence.at n=10A083944
• a(n)=sum_{k=0...n-1}B_k*A000364(k)*binomial(n,k) where B_k is the k-th Bernoulli number.at n=5A111162
• Triangle T, read by rows, where row n of T equals row n of matrix (n+1)-th power of triangle A112555.at n=58A113287
• A triangular sequence from a Beraha type recursive polynomial using 5 X 5 centered tridiagonal matrices with chromatic polynomial central roots to its characteristic polynomial.at n=33A123969
• a(n)= -3a(n-1) -3a(n-2)-2a(n-3), a(0)=1, a(1)=-2, a(2)=2.at n=11A131562
• Triangle T(d,n) read by rows, the n-th term of the d-th differences of the Jacobsthal sequence A001045.at n=56A140503
• First differences of A133730.at n=23A141416
• G.f.: (1+x)/(1+x-2*x^2).at n=11A151575
• Expansion of (1-x+x^3)/(1-x^2+2*x^3-x^4).at n=15A226447
• Expansion of q^(-2/5) * (r(q^2) + r(q)^2) / 2 in powers of q where r() is the Rogers-Ramanujan continued fraction.at n=46A285555