30000000001
domain: N
Appears in sequences
- Numbers k such that k^2+k+7 is a palindrome.at n=30A027722
- Smallest prime containing exactly n 0's.at n=9A037053
- Smallest prime in which the n-th significant digit is a 3.at n=10A069589
- Largest n-digit prime with minimum digit sum.at n=10A069664
- Smallest prime == 1 mod (10^n).at n=9A070854
- Smallest prime of the form k*n^n + 1.at n=9A070855
- a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that last digit of a(n-1) + first digit of a(n) = 3.at n=31A098408
- a(n) = 3*10^n + 1.at n=10A199683
- Primes of the form 3*10^k + 1.at n=3A259866
- Smallest prime containing exactly n consecutive 0's.at n=9A300102
- Primes of form 3*k^k + 1.at n=3A301644
- Smallest prime numbers characterized by a convergence speed of n, assuming a(1) = 2 (since 2^2 <> 2^2^2 (mod 10) and 2^2^2 == 2^2^2^2 (mod 10)).at n=9A339313
- Smallest prime number with a constant convergence speed >= n.at n=9A387664