-28672
domain: Z
Appears in sequences
- Expansion of (1-x)/(1+2*x+2*x^2+2*x^3).at n=23A078071
- Hankel transform of sum{k=0..n, C(2k,k)*2^k}.at n=3A120581
- Coefficient table for Chebyshev polynomials T(2*n,x) (increasing even powers x, without zeros).at n=34A127674
- A triangular sequence of coefficients of even plus odd Chebyshev polynomials, A053120: q(x,n) = T(x,2*n-1)+T(x,2*n).at n=62A137307
- Alternated reading of A000302 and negated A002042.at n=13A140721
- A001792*A008683.at n=12A156827
- Inverse binomial transform of A026741.at n=14A168150
- a(n) = 2^n*floor((5-2*n)/3).at n=12A171552
- Triangle read by rows: terms T(n,k) of a binomial decomposition of 2^n-1 as Sum(k=0..n)T(n,k).at n=39A244127
- a(n) = n^3 * Sum_{d|n} (-1)^(n/d + 1) * mu(d) / d^3.at n=31A338548