How else can the sequence for Row 1 be written? Notice:
Square A: 1 penny = 20
Square B: 2 pennies = 21
Square C: 4 pennies = 22
How many pennies would be on the square labeled H?

29
28
27
How many pennies are on the nth square?

2n
2n – 1
2n + 1

2n – 1
2n + 1
The sequence formed is geometric, with

a1 =
3
, and common ratio r =