74229

Appears in sequences

• a(n) = 100*n^2 - 151*n + 57.at n=27A157626
• Least positive integer k such that both k and k*n belong to the set {m>0: 2*prime(prime(m))+1 = prime(p) for some prime p}.at n=18A261362
• a(n) is the smallest number which can be represented as the sum of n distinct nonzero n-gonal numbers in exactly 2 ways.at n=23A377729