10 More Letter Sequence Matches Sequences Explanations
1.
Starting with A, move 3 letters right, then 1 letter left, then 1 letter left, then 3 right, 1 left, 1 left, 3 right, etc.
2.
2 4 6 8 ... spelled out with X sperarator
3.
B 
A 
L 
T 
I 
M 
O 
R 
E 
C 
D 
F 
G 
H 
J 
K 
N 
P 
Q 
S 
U 
V 
W 
X 
Y 
Z 

then take columns in order lefttoright.
4.
Keyword MADISON, then remaining letters in alphabetical order.
5.
ML 
KJ 
IH 
GF 
ED 
CB 
A 
NO 
PQ 
RS 
TU 
VW 
XY 
Z 
then take alternate pairs.
6.
Presidents backwards in reverse order HSUB NOTNILC HSUB NAGAER
7.
Counting in roman numerals.
8.
Starting with the A, go backwards in the alphabet, skipping 1 letter, 2 letters, 3,4,5,5,4,3,2,1,2,3,4 ...
9.
The common solfege do re mi fa so la ti do.
10.
Alphabet in order, skipping vowels.
