SOLUTION: what comes next in the sequence. 1,3,7,13

Question 97099: what comes next in the sequence.
1,3,7,13
Found 3 solutions by stanbon, checkley71, Shin123:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
what comes next in the sequence.
1,3,7,13
next is 13+4 = 17
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Cheers,
Stan H.
Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!
1,3,7,13,21
RULE:
1+(2)=3
3+(4)=7
7+(6)=13
13+(8)=21
Answer by Shin123(626)   (Show Source): You can put this solution on YOUR website!
The pattern basically is, +2,+4,+6,+8,+10... +8 comes next. 13+8=21 21+10=31 31+12=43.
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