2818572287

Appears in sequences

• Smallest prime p with bigomega(p+1)=n, where bigomega(m)=A001222(m) is the number of prime divisors of m (counted with multiplicity).at n=28A118883
• a(n) = 21*2^n - 1.at n=27A171389
• Least prime p such that p+1 is divisible by 2^n and not by 2^(n+1).at n=27A201914
• Decimal representation of the middle column of the "Rule 169" elementary cellular automaton starting with a single ON (black) cell.at n=31A267589