28633

Appears in sequences

• a(n) = a(n-1)+a(n-2)+n-4, a(0)=0, a(1)=1.at n=25A210673
• Numbers k for which rank of the elliptic curve y^2=x^3+k*x is 4.at n=25A309031
• Numbers m such that abs(K(m+1) - K(m)) = 2, and both m and m+1 are squarefree (A005117), where K(m) = A002034(m) is the Kempner function.at n=16A346212