Sequence Test

Medium level

This level has medium hard exercises; this is harder than the basic because the answers will have at most 4 digits. If you want to select which tests are used, you can set up a custom exercise.

Scoring

You get one point for every correct answer, unlike the math test there is no negative score.

Manual

The answer to the sequenence and it's explaination will be printed right next to it in the site's background color. You can use CTRL+A, Command+A or mouse select all to show it. Custom tests will offer more control over the test.

Questions
1) 10, 7, 2, 10, -6, 13, -14, 16, -22, 19, -30 22 (odd=seq1, even=seq2; seq1: -= 8, seq2: += 3)
2) 16, 24, 40, 64, 104 168 (Next is + of previous two)
3) 7, 30, 122, 490, 1962 7850 (4 * previous + 2)
4) 14, 16, 19, 24, 31 42 (previous + next prime number)
5) 16, 18, 21, 26, 33 44 (previous + next prime number)
6) 13, 14, 18, 27, 43 68 (previous + ^2 of place in sequence)
7) 17, 45, 129, 381, 1137 3405 (3 * previous - 6)
8) 9, 11, 14, 19, 26 37 (previous + next prime number)
9) 5, 7, 10, 15, 22 33 (previous + next prime number)
10) 3, 3, 6, -2, 12, -7, 24, -12, 48, -17, 96 -22 (odd=seq1, even=seq2; seq1: *= 2, seq2: -= 5)
11) 3, 1, -3, -11, -27 -59 (2 * previous - 5)
12) 5, 6, 10, 19, 35 60 (previous + ^2 of place in sequence)
13) 5, 19, 61, 187, 565 1699 (3 * previous + 4)
14) 3, 17, 59, 185, 563 1697 (3 * previous + 8)
15) 5, 14, 41, 122, 365 1094 (3 * previous - 1)
16) 13, 15, 18, 23, 30 41 (previous + next prime number)
17) 3, 8, -5, 13, -18 31 (Next is - of previous two)
18) 15, 21, 33, 57, 105 201 (2 * previous - 9)
19) 12, 13, 17, 26, 42 67 (previous + ^2 of place in sequence)
20) 16, 57, 180, 549, 1656 4977 (3 * previous + 9)
21) 6, 8, 11, 16, 23 34 (previous + next prime number)
22) 17, 1, 16, 3, 15, 9, 14, 27, 13, 81, 12 243 (odd=seq1, even=seq2; seq1: -= 1, seq2: *= 3)
23) 1, 9, 25, 57, 121 249 (2 * previous + 7)
24) 10, 17, 27, 44, 71 115 (Next is + of previous two)
25) 7, 8, 12, 21, 37 62 (previous + ^2 of place in sequence)


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