28443

Appears in sequences

• Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026703.at n=19A026713
• Numbers n such that in n^3 the parity of digits alternates.at n=27A030159
• Nearest integer to the space diagonal of the smallest (measured by the longest edge) primitive (gcd(a,b,c)=1) Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers). If the space diagonal is an integer then the Euler brick is called a "perfect cuboid". There are no known perfect cuboids.at n=28A141029
• a(n) = Sum_{k=0..n} binomial(3*n+k-1,k) * binomial(n-1,n-k).at n=5A378612