1,4,5,7,12,10,22,13,35,...

pentagonal

(5 sides)

1,4,5,7,12,10,22,13,35,...

what are the rest 2 numbers?
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2 Answers

16 and  51

There are 2 number patterns involved here.

First pattern:

2nd no. = 4
4th no. = 4 + 3 = 7
6th no. = 7 + 3 = 10
8th no. = 10 + 3 = 13
10th no. = 13 + 3 = 16

Second pattern:

3rd no. = 1st no. + 2nd no. = 1 + 4 = 5
5th no. = 3rd no. + 4th no. = 5 + 7 = 12
7th no. = 5th no. + 6th no. = 12 + 10 = 22
9th no. = 7th no. + 8th no. = 22 + 13 = 35
11th no. = 9th no. + 10th no. = 35 + 16 = 51
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5 1/4 . 1 4/7
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