13,974 views
22 votes
22 votes
17, 18, 22, 31, 47, ?

User Guywithmazda
by
3.1k points

2 Answers

25 votes
25 votes

Answer:

72

Explanation:

17+1=18

18+4=22

22+9=31

31+16=47

User PurplePilot
by
3.2k points
14 votes
14 votes
The next number would be 63
User Mercury Dime
by
3.0k points