spookyseq3 - one of the ghosts in the spooky sequence is missing a number. Click on the number buttons along the bottom of the main game screen to add a number to the ghost. Click 'Enter' to register your answer and, if correct, send the ghosts back to the haunte house. There are five spooky sequences to complete. Good Luck - Triangular Numbers - 3 Primary Games Arena All Games Next game! I like it!