41269

Properties

Appears in sequences

• Numbers k such that 2*10^k + 3*R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=22A056701
• Numbers k such that the k-th triangular number contains only digits {1,5,8}.at n=12A119137
• Lexicographically earliest sequence of distinct primes whose partial products lie between noncomposite numbers.at n=37A359940
• Prime numbersat n=4322