46336

Appears in sequences

• Expansion of tanh(x)tan(x)/2 in powers of x^(4*n+2).at n=2A009837
• Values of y in x^2 - 49 = 2*y^2.at n=16A106526
• Expansion of (c(q^2)/c(q))^3 in powers of q where c() is a cubic AGM theta function.at n=30A123633
• Expansion of 3 * (b(q^2)^2 / b(q)) / (c(q)^2 / c(q^2)) in powers of q where b(), c() are cubic AGM theta functions.at n=31A128636
• a(0)=-4, a(1)=5; thereafter a(n) = 2*a(n-1) + a(n-2).at n=12A221174
• Expansion of f(-x)^6 * f(-x^3)^2 / phi(-x^3)^8 in powers of q where phi(), f() are Ramanujan theta functions.at n=15A260168
• Expansion of (psi(-x^3) / f(x))^2 in powers of x where psi(), f() are Ramanujan theta functions.at n=20A261369
• Expansion of 3 * a(q^2) * b(q^2) * c(q^2) / (b(q) * c(q)^2) in powers of q where a(), b(), c() are cubic AGM theta functions.at n=31A263538
• Least number x such that x^n has n digits equal to k. Case k = 7.at n=21A285454
• Number of maximal independent vertex sets (and minimal vertex covers) in the n-Keller graph.at n=3A290607
• a(0) = 0; a(n) = 4^(n-1) + (1/n) * Sum_{k=1..n-1} binomial(n,k)^2 * 4^(k-1) * (n-k) * a(n-k).at n=5A333983