A134649 Minimal n-primeval numbers: a(n) = smallest number M such that all primes with <= n digits are embedded in a permuted subsequence of M's digits.
2357, 1123456789, 1012233445566778899, 10011222333444555666777888999, 1000111222233334444555666777788889999, 100001111222233333444445555566666777778888899999, 100000111112222233333344444555556666677777788888999999
Offset: 1
Links
- M. Keith, Integers containing many embedded primes
Extensions
Extended by Charles R Greathouse IV, Aug 13 2009