Deletable primes: primes such that removing some digit leaves either the empty string or another deletable prime.
2, 3, 5, 7, 13, 17, 23, 29, 31, 37, 43, 47, 53, 59, 67, 71, 73, 79, 83, 97, 103, 107, 113
1 seqfan posts
Mon Jul 12 06:46:08 CEST 2010 [seqfan] Is A179336 the complement of A034844