CREATE TABLE table_29126 ("Team" TEXT, "Outgoing manager" TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Incoming manager" TEXT, "Date of appointment" TEXT, "Position in table" TEXT)

What was the manner of departure for notts county with an incoming manager of martin allen
SELECT "Manner of departure" FROM table_29126 WHERE "Team" = 'Notts County' AND "Incoming manager" = 'Martin Allen'
SELECT "Manner of departure" FROM "table_29126" WHERE "Incoming manager" = 'Martin Allen' AND "Team" = 'Notts County'