70

15 + 1x1 = 16
16 + 2x2 = 20
20 + 3x3 = 29
29 + 4x4 = 45
45 + 5x5 = 70

Reflection.

Alex was the name of a reticulated python who escaped from the local zoo and found himself entering a crowded restaurant.

Pencil lead.

Monkey see monkey do.

The letter ''n''.

Mailbox.

In maps.

6: the sequence progresses –0, –1, –2 repeated.

Firetruck

The letter T.

"143"
Represents the number of letters in each word of the phrase.