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) 9, -3, 11, -14, -15, -12, -19, -75, -13, -24, -375, -14, -29, -1875, -15, -34, -9375 -16 (seq1, seq2, seq3...; even index has - before it; seq1: += 5, seq2: *= 5, seq3: += 1)
2) 6, -512, 5, -12, -256, -7, -24, -128, -9, -48, -64, -11, -96, -32, -13, -192, -16 -15 (seq1, seq2, seq3...; even index has - before it; seq1: *= 2, seq2: /= 2, seq3: += 2)
3) 7, 9, 12, 17, 24 35 (previous + next prime number)
4) 9, 4, 4, 4, 4 4 (Every term shows the number of letters in the English transcription of its number; 1, 3 (=one))
5) J, J, A, S, O, N D (First letters of month)
6) 16, 27, 49, 93, 181 357 (2 * previous - 5)
7) 8, 16, 24, 40, 64 104 (Next is + of previous two)
8) 1, 3, -2, 5, -7 12 (Next is - of previous two)
9) 14, 1114, 3114, 132114, 31131214 23411214 (Every following number describes the previous one; 111221 - One 1, One 2, Two 1s )
10) 3, 13, 12, 24, 17, 24, 192, 21, 48, 1536, 25, 96, 12288, 29, 192, 98304, 33 384 (seq1, seq2, seq3...; seq1: *= 8, seq2: += 4, seq3: *= 2)
11) 5, -9, 14, -8, -45, -18, -11, -225, -22, -14, -1125, -26, -17, -5625, -30, -20, -28125 -34 (seq1, seq2, seq3...; even index has - before it; seq1: += 3, seq2: *= 5, seq3: += 4)
12) 9, 11, 20, 31, 51 82 (Next is + of previous two)
13) 1, 16807, 480, -1, 2401, 240, -3, 343, 120, -5, 49, 60, -7, 7, 30, -9, 1 15 (seq1, seq2, seq3...; seq1: -= 2, seq2: /= 7, seq3: /= 2)
14) 8, 16, 10, 10, 25, 6, 12, 34, 2, 14, 43, -2, 16, 52, -6, 18, 61 -10 (seq1, seq2, seq3...; seq1: += 2, seq2: += 9, seq3: -= 4)
15) 13, 22, -9, 31, -40 71 (Next is - of previous two)
16) 2, 3, 7, 16, 32 57 (previous + ^2 of place in sequence)
17) 12, -64, 3, -36, -32, -8, -108, -16, -13, -324, -8, -18, -972, -4, -23, -2916, -2 -28 (seq1, seq2, seq3...; even index has - before it; seq1: *= 3, seq2: /= 2, seq3: += 5)
18) 5, 6, 10, 19, 35 60 (previous + ^2 of place in sequence)
19) 4, 12, -8, 20, -28 48 (Next is - of previous two)
20) 5, -7, 14, -25, -63, -19, -125, -567, -24, -625, -5103, -29, -3125, -45927, -34, -15625, -413343 -39 (seq1, seq2, seq3...; even index has - before it; seq1: *= 5, seq2: *= 9, seq3: += 5)
21) 54432, 69984, 9072, 11664, 1512, 1944, 252, 324, 42, 54, 7 9 (odd=seq1, even=seq2; seq1: /= 6, seq2: /= 6)
22) 2, 12500, 14, 5, 2500, 42, 8, 500, 126, 11, 100, 378, 14, 20, 1134, 17, 4 3402 (seq1, seq2, seq3...; seq1: += 3, seq2: /= 5, seq3: *= 3)
23) 9, 13, 21, 37, 69 133 (2 * previous - 5)
24) 13, 34, 97, 286, 853 2554 (3 * previous - 5)
25) 10, 11, 15, 24, 40 65 (previous + ^2 of place in sequence)


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