Sequence Test

Hard level + non math sequences

This has more possible exercises than the hard level. The answers can 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) 13, 15, 18, 23, 30 41 (previous + next prime number)
2) 10, 2, 10, 7, 12, 1, 4, 72, -8, 1, 432, -17, -2, 2592, -26, -5, 15552 -35 (seq1, seq2, seq3...; seq1: -= 3, seq2: *= 6, seq3: -= 9)
3) 14, 16, 19, 24, 31 42 (previous + next prime number)
4) A, M, J, J, A, S O (First letters of month)
5) 14, 1114, 3114, 132114, 31131214 23411214 (Every following number describes the previous one; 111221 - One 1, One 2, Two 1s )
6) 11, 13, 16, 21, 28 39 (previous + next prime number)
7) 8, 16, 3, 25, -2, 34, -7, 43, -12, 52, -17 61 (odd=seq1, even=seq2; seq1: -= 5, seq2: += 9)
8) 3, 7, 7, 12, 28, 16, 48, 112, 25, 192, 448, 34, 768, 1792, 43, 3072, 7168 52 (seq1, seq2, seq3...; seq1: *= 4, seq2: *= 4, seq3: += 9)
9) 7, 5, 4, 4, 4 4 (Every term shows the number of letters in the English transcription of its number; 1, 3 (=one))
10) 10, 25, 70, 205, 610 1825 (3 * previous - 5)
11) 1, 6, -5, 11, -16 27 (Next is - of previous two)
12) 8, 2, 7, 11, 18, 12, 14, 162, 17, 17, 1458, 22, 20, 13122, 27, 23, 118098 32 (seq1, seq2, seq3...; seq1: += 3, seq2: *= 9, seq3: += 5)
13) 8, 36, 148, 596, 2388 9556 (4 * previous + 4)
14) 15, -10, 13, -19, -50, -14, -23, -250, -15, -27, -1250, -16, -31, -6250, -17, -35, -31250 -18 (seq1, seq2, seq3...; even index has - before it; seq1: += 4, seq2: *= 5, seq3: += 1)
15) 10240, 1003833, 10, 2560, 111537, 13, 640, 12393, 16, 160, 1377, 19, 40, 153, 22, 10, 17 25 (seq1, seq2, seq3...; seq1: /= 4, seq2: /= 9, seq3: += 3)
16) 5, 17, 15, 51, 45, 153, 135, 459, 405, 1377, 1215 4131 (odd=seq1, even=seq2; seq1: *= 3, seq2: *= 3)
17) 14, 15, 19, 28, 44 69 (previous + ^2 of place in sequence)
18) 16, 21, -5, 26, -31 57 (Next is - of previous two)
19) 354294, 13, 39366, 22, 4374, 31, 486, 40, 54, 49, 6 58 (odd=seq1, even=seq2; seq1: /= 9, seq2: += 9)
20) 8, 28, 108, 428, 1708 6828 (4 * previous - 4)
21) 11, 12, -1, 13, -14 27 (Next is - of previous two)
22) 10, 11, 15, 24, 40 65 (previous + ^2 of place in sequence)
23) 1, 2, 6, 15, 31 56 (previous + ^2 of place in sequence)
24) 4, 6, 9, 14, 21 32 (previous + next prime number)
25) 12, 85536, 17, 8, 14256, 8, 4, 2376, -1, 0, 396, -10, -4, 66, -19, -8, 11 -28 (seq1, seq2, seq3...; seq1: -= 4, seq2: /= 6, seq3: -= 9)


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