Miss O - Pony Princess

The Ponies made an appearance at Springfield for February - Heartthrob, the mail-away twins and a 3rd Gen whose name I don't know hang out in my room on my desk next to Grandma [who bought them for me - except for the newest one, obviously], and Pinky Pie, Banana Surprise, Sherbet, Cocoberry, Sweet Stuff and Strawberry Scoops are hanging out in the Estimation Station with cupcake marshmallows.

100 day was not far off, so even more ponies joined the pony parade for a 100 day math mystery: How Many Ponies does Miss O have? [the world may never know...]

And yes. I realize not all of them are My Little Pony, but there are some Magic Meadow Pony on there, for you true sticklers. In case you can't read the fine print, the math problem is as follows:

Miss O has 16 Magic Meadow ponies, 53 first generation My Little Ponies [MLP] 30 third generation MLP and one custom Percy 'Pony' Jackson MLP [on her desk, check him out] at school. 

At home, she has four times as many ponies as she does at school*, plus about 65 extra [repeats of the ones she already has, in better or worse shape]. 

How many ponies does Miss O have all together? Use words, an array, and an number sentence to show your work. 

Answer: 565
*This is by no means an accurate representation of the number of actual ponies I have.
And yes. There were actually 100 My Little Ponies [okay, some were Magic Meadow, but they were also produced by Hasbro] at school.