48438

Appears in sequences

• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0,2}.at n=16A079993
• a(1)=a(2)=1. a(n+1) = a(n) + a(largest prime dividing n).at n=46A128215
• Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+1) rectangle.at n=15A274594
• Number of solutions to x^3 + y^3 + z^3 + t^3 == 1 (mod n) for 1 <= x, y, z, t <= n.at n=38A276919
• Fourier coefficients of the modular form (1/t_{6a}^3) * (1-6*sqrt(-3)/t_{6a}) * (1-12*sqrt(-3)/t_{6a})^(2/3) * F_{6a}^16.at n=6A341572
• Number of ways to place a non-attacking black king and white king on an n X n board, up to rotation and reflection.at n=25A357723
• Expansion of (1/x) * Series_Reversion( x*(1+x-x^3)/(1+x)^3 ).at n=9A366096
• Expansion of g.f. A(x) satisfying A( x*(1 + 2*x)*A(x) )^3 = A( x*(1 + 3*x)*A(x)^2 )^2.at n=10A370537
• E.g.f. satisfies A(x) = (1 + x * (exp(x*A(x)) - 1))^3.at n=6A377689