(18 Jul 2014, 11:10 am)Roland Pratt wrote Pulsars on the 7 aren't 2+1 are they?!
At least the first few seats are - on the off-side - in a similar kind of fashion to the first seat on the disabled/buggy bay as shown on the Streetlite on the above interior shot.
I've only been on the 7 once or twice, but I certainly remember sitting next to the emergency exit on a single seat.
EDIT: See photo below.
Arriva North East: 1515 / NL63VRK by danielgrahamm, on Flickr
Four sets of 2+1.