CREATE TABLE table_74353 ("No." FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( million ) " CLOB)

Which episode number saw 1.312 million U.S. Wviewers?
SELECT "No." FROM table_74353 WHERE "U.S. viewers (million)" = '1.312'
SELECT "No." FROM "table_74353" WHERE "U.S. viewers (million)" = '1.312'