CREATE TABLE table_272 ("Series no." FLOAT, "Season no." FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production Code" FLOAT)

What is the series number for the title 'Bad Influence
SELECT MAX("Series no.") FROM table_272 WHERE "Title" = 'Bad Influence'
SELECT MAX("Series no.") FROM "table_272" WHERE "Title" = 'Bad Influence'