Natural numbers arranged into triples a, b, c with no common factor.
1, 2, 3, 4, 5, 9, 6, 7, 13, 8, 11, 19, 10, 17, 27, 12, 23, 35, 14, 15, 29, 16, 21, 37, 18, 25
1 seqfan posts
Thu Oct 28 21:16:36 CEST 2010 [seqfan] Naturals permutated in triplets a, b, c "with no common factor"