173184

Appears in sequences

• a(n) = Sum_{k=0..floor(n/3)} 2^k * binomial(k,n-3*k)^2.at n=25A387477
• Numbers k such that k divides sigma(A003961(k)), where A003961 is fully multiplicative with a(p) = nextprime(p), and sigma is the sum of divisors function.at n=38A389469