  Consideration of a classification of the number of partitions of a natural
number according to the members of sub-partitions differing from unity leads to
a non-recursive formula for the number of irreducible representations of the
symmetric group Sn. This article was published, long ago, under the title A
non-recursive expression for the number of irreducible representations of the
Symmetric Group Sn, Physica 114A, 1982, 361-364, North-Holland Publishing Co.
The Introduction has been, somewhat, improved, however, the handmade result
remains unproved.
