-1500

Appears in sequences

• Sequence is {a(5,n)}, where a(m,n) is defined at sequence A110665.at n=13A110670
• Array of coefficients of powers of x^2 for (S(2*n+1,x)/x)^3, with Chebyshev's S polynomials A049310.at n=23A220665
• Expansion of Product_{k>=1} 1/(1 + x^k)^(k+1).at n=27A305628
• a(n) = Sum_{d|n} (-1)^(d-1)*d^2.at n=41A321543
• Triangle read by rows. T(n, k) = Sum_{j=0..n-k} binomial(-n, j) * A268437(n - k, j).at n=17A357339
• Expansion of g.f. A(x) satisfying Sum_{n>=0} Product_{k=1..n} (x^k + 2*A(x)) = 1 + 3*Sum_{n>=1} x^(n*(n+1)/2).at n=7A370142