1534680

Appears in sequences

• a(n) = 2*(n+1)*binomial(n+3,4).at n=26A027789
• Half of the height of the right trapezoidal gnomon (of the derivative of Y=X^5).at n=27A281999
• Numbers k such that s(k) = 4*k, where s(k) is the sum of divisors of k that have a square factor (A162296).at n=1A357494