50220

Appears in sequences

• Numbers i such that Fibonacci(i) is divisible by i, i+1, i+2, and i+3.at n=18A298685
• a(n) = sigma(n) * A003961(n), where A003961 shifts the prime factorization of n one step towards larger primes, and sigma is the sum of the divisors of n.at n=47A341529
• a(n) = lcm(sigma(n), A003961(n)), where A003961 is fully multiplicative with a(prime(k)) = prime(k+1), and sigma is the sum of divisors of n.at n=47A342672
• a(n) = sigma(n) * A332818(n).at n=47A389082