104072

Appears in sequences

• Number of fault-free tilings of a 4 X 2n rectangle with L tetrominoes.at n=14A084481
• Prime index of A000101(n), maximal gap upper end prime index.at n=19A107578
• Indices of primes occurring in A031134.at n=25A122413
• Number of primes <= A214757(n).at n=19A214925
• Start with 83; if even, divide by 2; if odd, add next three primes: Orbit of 83 under iterations of A174221, the "PrimeLatz" map.at n=29A293979
• a(n) is the index k of prime(k), such that abs(prime(k) - Sum_{j=k-2..k+2} prime(j)/5) sets a new record.at n=24A337438
• a(n) is the index k of prime(k), such that abs(prime(k) - Sum_{j=k-1..k+1} prime(j)/3) sets a new record.at n=18A337488