-875

Appears in sequences

• Expansion of log(1+log(1+x))*exp(x).at n=6A009315
• Expansion of Product_{m>=1} (1-m*q^m)^20.at n=4A022680
• Expansion of (1-25*x)^(3/5).at n=3A049391
• Triangular matrix T, read by rows, that satisfies: [T^-k](n,k) = -T(n,k-1) for n >= k > 0, or, equivalently, (column k of T^-k) = -SHIFT_LEFT(column k-1 of T) when zeros above the diagonal are ignored. Also, matrix inverse of triangle A107876.at n=61A107889
• Riordan array (1-4x, x(1-x)^3).at n=41A119305
• Triangle T(n,0)=0 and T(n,k) = -A028421(n-1,k-1), 0<k<=n.at n=33A136426
• Expansion of (1-2x-5x^2-7x^3+x^6)/((1-x)(1-x^3)^2).at n=35A141352
• Triangle T(n, k) = Product_{j=1..k} Product_{i=0..j-1} ( 1 - (n-k+1)*(3*i-2) ) with T(n, 0) = 1 and T(n, n) = n!, read by rows.at n=13A156730
• Values of n such that L(9) and N(9) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=12A226929
• Difference between sums of quadratic residues and non-residues modulo n (residues are not necessarily coprime to n).at n=69A255644
• Irregular triangle read by rows: mean version of Girard-Waring formula A210258, for m = 5 data values.at n=32A288207