-460

Appears in sequences

• sec(arctan(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+83/4!*x^4-460/5!*x^5...at n=5A012970
• Expansion of e.g.f.: sec(tanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+83/4!*x^4-460/5!*x^5...at n=5A013127
• Generalized Gaussian Fibonacci integers.at n=12A088137
• Coordination sequence for octagonal tiling is a(n)*sqrt(2) + A103909(n).at n=29A103908
• McKay-Thompson series of class 44b for the Monster group.at n=65A112184
• Matrix inverse of triangle A113287.at n=50A113288
• Determinants of 3 X 3 matrices of continuous blocks of 9 consecutive semiprimes.at n=11A118781
• Identity matrices minus Steinbach matrices as characteristic polynomials to give a triangular array I[n]-An[i,j]-> P[k,x] P[k,n]->T[n,m).at n=81A122160
• Expansion of phi(-q) / phi(-q^5) in powers of q where phi() is a Ramanujan theta function.at n=56A138527
• Expansion of phi(q) / phi(q^5) in powers of q where phi() is a Ramanujan theta function.at n=56A144377
• Alternating sum of heptagonal numbers.at n=19A266085
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 51", based on the 5-celled von Neumann neighborhood.at n=11A270021
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 150", based on the 5-celled von Neumann neighborhood.at n=29A270324
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 150", based on the 5-celled von Neumann neighborhood.at n=33A270324
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 267", based on the 5-celled von Neumann neighborhood.at n=11A271086
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 629", based on the 5-celled von Neumann neighborhood.at n=37A273298
• Coefficients in the expansion Product_{ n>=1 } (1-q^(2n-1))^2/(1-q^(2n))^2.at n=13A274621
• Expansion of Product_{n>0} ((1-x^n)/(1+x^n))^n in powers of x.at n=22A285675
• G.f. A(x) satisfies: A( 2*A(x)^2 + 4*A(x)^3 ) = 2*x^2 - 4*x^3.at n=5A290958
• Triangle read by rows: T(0,0) = 1; T(n,k) = T(n-1,k) - 2*T(n-1,k-2) + T(n-1,k-3) for k = 0..3n; T(n,k)=0 for n or k < 0.at n=60A318686