325160

Appears in sequences

• 4-dimensional analog of centered polygonal numbers.at n=31A006323
• a(n) = binomial(n+2, 2) + binomial(n+4, 5).at n=31A027658
• Totient numbers k such that 10*k is a nontotient.at n=10A350320
• a(n) = Sum_{k=0..floor(n/2)} binomial(n,k) * binomial(4*k,n-2*k).at n=11A389151