how might you derive the unboxed permutation list from this tree?
(] <@; $:^:(1 < #)@-.)"1 0~ 0 1 2 +---------------+---------------+---------------+ |+-+-----+-----+|+-+-----+-----+|+-+-----+-----+| ||0|+-+-+|+-+-+|||1|+-+-+|+-+-+|||2|+-+-+|+-+-+|| || ||1|2|||2|1|||| ||0|2|||2|0|||| ||0|1|||1|0||| || |+-+-+|+-+-+||| |+-+-+|+-+-+||| |+-+-+|+-+-+|| |+-+-----+-----+|+-+-----+-----+|+-+-----+-----+| +---------------+---------------+---------------+ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
