707472

Appears in sequences

• a(n) = ((n-th prime)^5-(n-th prime)^3)/2.at n=6A138432
• Integer areas A of the integer-sided triangles such that the inradius and the radius of the three excircles are perfect squares.at n=10A233317
• Number of chiral pairs of rows of length 5 using up to n colors.at n=17A321672
• a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} (-2)^(n-k) * binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.at n=7A336714