49057

Properties

Appears in sequences

• Numbers n such that n, 10*n+1, 10*n+3, 10*n+7 and 10*n+9 are all primes.at n=15A067267
• The hyper-Wiener index of the nanostar dendrimer NS_1[n], defined pictorially in the A. R. Ashrafi et al. reference.at n=1A224438
• Numbers of the form 6^j + 7^k, for j and k >= 0.at n=40A226819
• Primes of form n^2 + 2401.at n=27A256835
• Primes whose base-8 representation is a perfect square in base 10.at n=15A267490
• G.f. A(x) satisfies A(x) = 1 + x / ((1+x)^3*A(x)^2).at n=7A366499
• Prime numbersat n=5043