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Aitchison College Academic Resources.
LINEAR
TYPES OF SEQUENCES
QUADRATIC
GEOMETRIC
FIBONACCI
OTHER
eg 2 6 10 14 18
7 v7 N77 v7
+4. +4 +4 +4
FIRST DIFFERENCES CONSTANT
eg 59 9 15 23 33
N77 <7 7
+4. +6 +8 +10
N77 7
42 +2 +2
SECOND DIFFERENCES CONSTANT
eg 4 12 36 108 324 ...
7 <7 a
x3 x3 x3 x3
CONSTANT MULTIPLIER (COMMON RATIO)
i) ®
2 4 6 10 16 26 42
) io)
ADD THE PREVIOUS TWO TERMS
e.g.
eg on 412 3 4
41 #14 °¢«4
1 2 3 4
ith TERM, a,=4
SUCH SEQUENCES DON’T FALL INTO ANY
CATEGORY BUT THE LINK BETWEEN
n AND a, IS FAIRLY EASY TO SPOT