-3136
domain: Z
Appears in sequences
- Determinant of n X n matrix defined by m(i,j)=1 if i^2+j^2 is a prime, m(i,j)=0 otherwise.at n=29A071524
- Triangle T(n,m) = coefficient of x^n (x^2*cosech(x))^m=sum(n>=m, T(n,m)x^n*m!^2/n!^2).at n=33A199568
- First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 179", based on the 5-celled von Neumann neighborhood.at n=33A270625
- a(n) = Glaisher's function beta(2n+1).at n=22A322032
- Starting at n, a(n) is the difference of the number of times we move away from zero from positive spots and the number of times we move away from zero from negative spots according to the following rules. On the k-th step (k=1,2,3,...) move a distance of k in the direction of zero. If the number landed on has been landed on before, move a distance of k away.at n=39A324688
- a(n) is the determinant of an n X n Hermitian Toeplitz matrix whose first row consists of 1, 2*i, ..., n*i, where i denotes the imaginary unit.at n=12A359559
- E.g.f. A(x) satisfies A(x) = exp(-x*A(x)^3) + x.at n=5A379858