67634176

Appears in sequences

• 3-magic series constant.at n=15A052460
• Least number k such that phi(k) = n, where n runs through the values in A143510.at n=1A143511
• a(n) is the smallest number m with n divisors such that m+1 has n-1 divisors, or 0 if no such number exists.at n=32A353032
• a(n) = Product_{i=1..n, j=1..n} (i^8 + j^8).at n=2A367834
• Even terms in A002181.at n=1A387221