47020

Appears in sequences

• Related to representation as sums of squares.at n=37A002292
• Partial sums of A069996.at n=6A153703
• Expansion of q^(-1/2) * k(q) * (1 - k(q)^4) * (K(q) / (Pi/2))^6 / 4 in powers of q where k(), k'(), K() are Jacobi elliptic functions.at n=37A225923
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-3k)^k for 0 <= k <= n.at n=29A248978
• Number of length-4 0..n arrays with no following elements larger than the first repeated value.at n=13A267472
• Triangle read by rows: T(n,m) = Sum_{k=m+1..n} (n-1)!/(k-1)!*binomial(2*n-k-1, n-1)*E(k,m) where E(n,m) is Euler's triangle A173018, T(0,0) = 1, n >= m >= 0.at n=31A316773