-904

Appears in sequences

• McKay-Thompson series of class 8E for the Monster group.at n=19A029841
• a(n) = 6 + 33*n + 6*binomial(n, 2) - 28*binomial(n, 3) + 20*binomial(n, 4) - 47*binomial(n, 5).at n=7A058985
• McKay-Thompson series of class 16c for the Monster group.at n=19A112152
• Expansion of q^(-1) * (phi(-q) / psi(q^4))^2 in powers of q where phi(), psi() are Ramanujan theta functions.at n=38A131124
• McKay-Thompson series of class 8E for the Monster group with a(0) = 4.at n=38A131125
• A triangle of polynomial coefficients:p(x,n)=Sum[(2*k + 1)^n*k!*Binomial[x, k], {k, 0, n}].at n=8A176666
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of (floor[(i+1)/2] if i=j and = 0 otherwise), as in A204162.at n=38A204163
• Expansion of (phi(q) / phi(q^4))^2 in powers of q where phi() is a Ramanujan theta function.at n=37A216060
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 605", based on the 5-celled von Neumann neighborhood.at n=37A273178
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 710", based on the 5-celled von Neumann neighborhood.at n=43A273424
• G.f.: Re((i; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1).at n=52A278399
• a(n) = coefficient of x^(2*n) in A(x) such that A(x) = G(x)^2 where G(x) = 1 + Sum_{n>=1} (-1)^n * x^(4*n^2) * (F(x/2)^(2*n) + F(-x/2)^(2*n)), and F(x) is the g.f. of A357787.at n=11A357803