30742

Appears in sequences

• Numbers n > 1 such that n^5 - 2 has no prime factor > n.at n=5A083955
• Numerator of Euler(n,1/3).at n=8A156179
• a(0)=1; thereafter a(n) = -2*Sum_{k=1..n} binomial(2n,2k)*a(n-k).at n=4A210657
• Numbers k such that 89*10^k - 9 is prime.at n=24A287685
• a(n) = A365742(10^n).at n=9A365748
• Length of n-th run of composite numbers in A376198.at n=12A376763