78387

Appears in sequences

• Let spm(n) be the sum of all prime factors of n counted with multiplicities (A001414); sequence gives numbers n such that spm(n+spm(n)) divides both n and n+spm(n).at n=26A131564
• a(n) = (n + 1)*(20*n^2 + 19*n + 6)/6.at n=28A220084
• Composite squarefree numbers n such that p-d(n) divides n+d(n), where p are the prime factors of n and d(n) the number of divisors of n.at n=21A228301