538384

Appears in sequences

• a(n) = f(n,4) where f is given in A034261.at n=19A034264
• Expansion of g.f.: (1+4*x)/(1-x)^7.at n=18A051946
• Numbers n such that n^2 + 3, n^3 + 3, n^4 + 3, n^5 + 3, n^6 + 3 and n^7 + 3 are semiprime.at n=34A253907