-870

Appears in sequences

• Expansion of log(1+x)*cosh(log(1+x)).at n=6A009411
• Expansion of ((eta(q)eta(q^15))/(eta(q^3)eta(q^5)))^3 in powers of q.at n=28A095123
• a(2*n) = A000217(n), a(2*n+1) = -2*A000217(n).at n=59A131259
• Triangle read by rows, inverse binomial transform of A152431.at n=49A152432
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the Fibonacci self-fusion matrix (A202453).at n=38A202605
• Table of coefficients of the algebraic number s(2*l+1) = 2*sin(Pi/(2*l+1)) as a polynomial in odd powers of rho(2*(2*l+1)) = 2*cos(Pi/(2*(2*l+1))) (reduced version).at n=62A228785
• Expansion of (1-q)^k/Product_{j=1..k} (1-q^j) for k=8.at n=37A275642
• Start with 2, then successively subtract the primes 3, 5, 7, ...at n=22A282329
• Expansion of Product_{k>=1} ((1 - k!*x^k)/(1 + k!*x^k)).at n=6A292319
• a(n) = Sum_{d|n} (-1)^(d-1)*d^2.at n=33A321543
• a(n) = Sum_{d|n} (-1)^(d-1) * binomial(d+n/d-1, d).at n=43A338682
• a(n) = A173557(n) * A345001(n).at n=30A345049
• Triangle read by rows. T(n, k) = lcm{1, 2, ..., n+1} * Sum_{j=0..n-k} (-1)^(n-k-j) * j! * Stirling2(n - k, j) / (j + k + 1).at n=60A362991