69127

Properties

Appears in sequences

• a(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1.at n=28A005428
• a(n) = ceiling((Sum_{k=1..n-1} a(k)) / 2) for n >= 2 starting with a(1) = 1.at n=29A073941
• Subsequence of A005428 with state = 1.at n=14A081614
• Primes of the form Sum_{k=1..n} phi(prime(k)).at n=28A101302
• Primes p such that the largest prime divisor of p^6 + 1 is less than p.at n=1A102328
• Primes of the form 5n^3+7.at n=5A201176
• Prime numbersat n=6865