CREATE TABLE table_16281 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "U.S. viewers  ( millions ) " CLOB)

What is the number in the season that Marlene Meyer wrote and 20.49 million people watched?
SELECT MAX("No. in season") FROM table_16281 WHERE "Written by" = 'Marlene Meyer' AND "U.S. viewers (millions)" = '20.49'
SELECT MAX("No. in season") FROM "table_16281" WHERE "U.S. viewers (millions)" = '20.49' AND "Written by" = 'Marlene Meyer'