52210

Appears in sequences

• a(n) = floor( a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ), for n >= 3 with a(1) = 1 and a(2) = 3.at n=39A022877
• Numbers n such that binomial(2n, n) - 1 is prime.at n=45A066726
• Least m such that both p|m and p+2|m+2 for twin prime pairs (p,p+2) (p=A001359).at n=15A097972
• a(n) = A000032(n)^A000032(n+1) mod A000032(n+2).at n=27A350087