111973

Properties

Appears in sequences

• a(n) = Sum_{i=0..2*n} Sum_{j=0..i} T(i, j), where T is given by A026552.at n=12A026567
• Class 7+ primes.at n=31A081635
• Number of 132-segmented permutations of length n.at n=11A125305
• a(n) = (2*6^(n+1) - 7) / 5.at n=6A233325
• Decimal prime numbers which can be split into three equal-sized prime parts whose sum is prime. No leading zeros.at n=22A243767
• Primes which satisfy the requirements of A380943 in exactly two ways.at n=32A383811
• Prime numbersat n=10618