211860

Appears in sequences

• Numbers k such that prime(k) +/- k and prime(k) +/- 2k are all primes.at n=24A112530
• Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=11.at n=31A135196