-655

Appears in sequences

• Expansion of (1-x)^(-1)/(1+2*x-2*x^2).at n=7A077917
• Expansion of 1/(1-x+2*x^2+x^3).at n=14A077955
• Expansion of 1/(1+x+2*x^2-x^3).at n=14A077978
• For all n >= 2, Sum_{2<=k<=n, gcd(k,n)>1} a(k) = n. a(1)=1.at n=53A124386
• Numerators of Blandin-Diaz compositional Bernoulli numbers C_2,n.at n=6A133004
• An infinite sum polynomial triangular sequence of coefficients that gives a LerchPhi polynomial: p(x,n)=(1 - x)^(n + 1)*Sum[(n + k)^n*x^k, {k, 0, Infinity}]=(1+x)^n*LerchPhi[x,-n,n].at n=11A142158
• Expansion of (1 - 2*x^3 - x^4 - 2*x^5 - x^6 - x^7 - x^8 + 2*x^9)/(1 + x - x^3 - x^4 - x^5 - x^6 - x^7 + x^9 + x^10).at n=46A143335
• Expansion of sqrt(1-4*x)/(1+x).at n=8A181641
• Triangle read by rows: row n gives (coefficients * (n-1)!) in expansion of pieces k=0..n-1 of the probability mass function for the Irwin-Hall distribution, lowest powers first.at n=45A188816
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of (f(i,j)), where f(i,1)=f(1,j)=1, f(i,i)= i; f(i,j)=0 otherwise; as in A204179.at n=23A204180
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 433", based on the 5-celled von Neumann neighborhood.at n=17A272148
• a(n+3) = -a(n+2) - 2*a(n+1) + a(n) with a(0)=0, a(1)=0, a(2)=1.at n=16A276229
• The sequence a(n,m) of the m polynomial coefficients of the n-th order B-spline scaled by n!, read by rows, with n in {0,1,2,...} and m in {1,2,3,...,(n+1)^2}.at n=49A289358
• G.f. A(x) satisfies: A(x) = x + x^3 * A(x/(1 + x)) / (1 + x).at n=14A351188
• Numerator generator for offsets from the quarter points of the Cantor ternary set to the center points of deleted middle thirds: 1 is in the list and if m is in the list -3m-4 and -3m+4 are in the list, which is ordered by absolute value.at n=27A355680