Numbers n such that n is a substring of n^n.
1, 5, 6, 9, 10, 11, 16, 17, 19, 21, 24, 25, 28, 31, 32, 33, 35, 36, 37, 39, 41, 42, 43, 45
1 seqfan posts
Tue Apr 27 20:58:18 CEST 2010 [seqfan] Re: "What primes P have P^P containing the string 'P' as substring'?"