-552

Appears in sequences

• Expansion of a modular function.at n=12A006709
• Expansion of log(1 + tan(x)*exp(x)).at n=8A009376
• McKay-Thompson series of class 12I for the Monster group.at n=53A058487
• Determinant of rank n matrix of 1..n^2 filled successively along antidiagonals.at n=45A069480
• Matrix inverse of triangle A104559, read by rows.at n=22A104560
• E.g.f.: x/(1+3x-4x^3)=x/[1-T(3,x)], where T(3,x) is a Chebyshev polynomial.at n=4A109576
• McKay-Thompson series of class 36f for the Monster group.at n=53A112176
• Bi-diagonal inverse of (2n)!/(2k)!.at n=89A119830
• New tetradiagonal form matrix as triangular sequence from solution of : X(n,m)=Steinbach(n,m)^(-1).tri-Antidiagonal_1(n,n).at n=62A124020
• a(2*n) = A000217(n), a(2*n+1) = -2*A000217(n).at n=47A131259
• Triangle read by rows of coefficients of Chebyshev-like polynomials P_{n,3}(x) with 0 omitted (exponents in increasing order).at n=32A136389
• Triangle T(n,k) read by rows: coefficient [x^k] of the polynomial p(n,x) with p(0,x) = 1, p(1,x) = 2 - x, p(2,x) = 1 - 4*x + x^2 and p(n,x) = (2-x)*p(n-1,x) - p(n-2,x) if n>2.at n=39A136674
• Triangle T(n,k) = binomial(n,k+2)-2*binomial(n,k+1)-binomial(n,k) read by rows, 0<=k<=n-2, n>=2.at n=41A140874
• Irregular triangle read by rows: T(n, k) = coefficients of f(n, x), where f(n, x) = (1-x)^(2*n+2) * Sum_{k >=0} (k^n * x^k).at n=36A141581
• First differences of A169701.at n=59A169702
• Riordan array (1-x, x(1-x)/(1+x)).at n=49A186827
• Expansion of Product_{n>=0} (1 + q*(-q^2)^n) / (1 - q*(-q^2)^n).at n=66A193863
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min{i(j+1),j(i+1)} (A203996).at n=23A203997
• Expansion of psi(-x)^2 * f(-x)^6 in powers of x where psi(), f() are Ramanujan theta functions.at n=41A215600
• Expansion of (psi(x^3) / psi(x))^2 in powers of x where psi() is a Ramanujan theta function.at n=17A217786