ok figure 1 has one block figure 2 has 5 block and figure 3 has 9 block whats the pattern

Answer 1

It looks like 4 blocks have been added to each figure.

Answer 2

but what would the 100th figure be

Answer 3

ok figure 1 has one block figure 2 has 5 block and figure 3 has 9 block
what would the 100th figure be

Answer 4

(99 * 4) + 1 = ?