{"id":"S2008005833","label":"Catalan numbers (Mathematics)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2008005833","normalized_label":"catalan numbers (mathematics)","broader":["http://id.loc.gov/authorities/subjects/sh85028802","http://id.loc.gov/authorities/subjects/sh85103916"],"aliases":["Catalan sequences (Mathematics)","Numbers, Catalan (Mathematics)","Sequences, Catalan (Mathematics)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2008005833","provider":"lcsh","revision":"4b5cb1da33b9eb16","taxonomy_revision":"f050b5d4780b1289","title":"Catalan numbers (Mathematics)","url":"/topics/S2008005833","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4666938961930101348","address_version":"morton4x16-v1","coordinates":[0,478,48883,9216],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}