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) 15, 41, 119, 353, 1055 3161 (3 * previous - 4)
2) 4, 5, 11, 12, 10, 5, 36, 20, -1, 108, 40, -7, 324, 80, -13, 972, 160 -19 (seq1, seq2, seq3...; seq1: *= 3, seq2: *= 2, seq3: -= 6)
3) M, J, J, A, S, O N (First letters of month)
4) 15, -4, 17, -135, -11, -20, -1215, -18, -23, -10935, -25, -26, -98415, -32, -29, -885735, -39 -32 (seq1, seq2, seq3...; even index has - before it; seq1: *= 9, seq2: += 7, seq3: += 3)
5) 3, 5, 8, 13, 20 31 (previous + next prime number)
6) 8, 5, 4, 4, 4 4 (Every term shows the number of letters in the English transcription of its number; 1, 3 (=one))
7) 9, 10, 36, 30, 144, 90, 576, 270, 2304, 810, 9216 2430 (odd=seq1, even=seq2; seq1: *= 4, seq2: *= 3)
8) 1003833, -17, 12, -111537, -25, -16, -12393, -33, -20, -1377, -41, -24, -153, -49, -28, -17, -57 -32 (seq1, seq2, seq3...; even index has - before it; seq1: /= 9, seq2: += 8, seq3: += 4)
9) 12, -16, 28125, -108, -22, -5625, -972, -28, -1125, -8748, -34, -225, -78732, -40, -45, -708588, -46 -9 (seq1, seq2, seq3...; even index has - before it; seq1: *= 9, seq2: += 6, seq3: /= 5)
10) 1, 4, 4, 16, 64 1024 (Next is * of previous two)
11) 2, 8, 12, 6, 72, 4, 432, 2, 2592, 0, 15552 -2 (odd=seq1, even=seq2; seq1: *= 6, seq2: -= 2)
12) 11, 12, 16, 25, 41 66 (previous + ^2 of place in sequence)
13) 15, 1115, 3115, 132115, 31131215 23411215 (Every following number describes the previous one; 111221 - One 1, One 2, Two 1s )
14) 5, 826686, 3, 0, 91854, -2, -5, 10206, -7, -10, 1134, -12, -15, 126, -17, -20, 14 -22 (seq1, seq2, seq3...; seq1: -= 5, seq2: /= 9, seq3: -= 5)
15) 2, 8, 10, 18, 28 46 (Next is + of previous two)
16) 5, 20, 65, 200, 605 1820 (3 * previous + 5)
17) 12, 7, 17, 11, 22, 15, 27, 19, 32, 23, 37 27 (odd=seq1, even=seq2; seq1: += 5, seq2: += 4)
18) 4, 5, 9, 18, 34 59 (previous + ^2 of place in sequence)
19) 14, 4, 11, 21, 0, 7, 28, -4, 3, 35, -8, -1, 42, -12, -5, 49, -16 -9 (seq1, seq2, seq3...; seq1: += 7, seq2: -= 4, seq3: -= 4)
20) 8, 64, 32, 32, 128, 16, 512, 8, 2048, 4, 8192 2 (odd=seq1, even=seq2; seq1: *= 4, seq2: /= 2)
21) 4, 6, 9, 14, 21 32 (previous + next prime number)
22) 12, 13, 17, 26, 42 67 (previous + ^2 of place in sequence)
23) 12, 33, 75, 159, 327 663 (2 * previous + 9)
24) 2, 10, 16, -7, 1, 11, -16, -8, 6, -25, -17, 1, -34, -26, -4, -43, -35 -9 (seq1, seq2, seq3...; seq1: -= 9, seq2: -= 9, seq3: -= 5)
25) 9, 28125, 72, 5625, 576, 1125, 4608, 225, 36864, 45, 294912 9 (odd=seq1, even=seq2; seq1: *= 8, seq2: /= 5)


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