A palin­drome is a word, phrase, num­ber, or sequence of char­ac­ters that reads the same for­ward and back­ward. In oth­er words, it remains unchanged even when reversed. They’re an inter­est­ing lin­guis­tic and math­e­mat­i­cal phe­nom­e­na that has fas­ci­nat­ed me for a long time.

Today is Feb­ru­ary 2, 2020—or…

0
02
020
0202
02022
020220
0202202
02022020
0202202
020220
02022
0202
020
02
0
A
AB
ABR
ABRA
ABRAC
ABRACA
ABRACAD
ABRACADA
ABRACADAB
ABRACADABR
ABRACADABRA
ABRACADABR
ABRACADAB
ABRACADA
ABRACAD
ABRACA
ABRAC
ABRA
ABR
AB
A
M
MO
MOM
MO
M
W
WO
WOW
WO
W
N
NO
NOO
NOON
NOO
NO
N
C
CI
CIV
CIVI
CIVIC
CIVI
CIV
CI
C
L
LE
LEV
LEVE
LEVEL
LEVE
LEV
LE
L
D
DE
DEF
DEFI
DEFIE
DEFIED
DEFIE
DEFI
DEF
DE
D
R
RA
RAC
RACE
RACEC
RACECA
RACECAR
RACECA
RACEC
RACE
RAC
RA
R
1×1=1
11×11=121
111×111=12321
1111×1111=1234321
11111×11111=123454321
111111×111111=12345654321
1111111×1111111=1234567654321
11111111×11111111=123456787654321
111111111×111111111=12345678987654321
11111111×11111111=123456787654321
1111111×1111111=1234567654321
111111×111111=12345654321
11111×11111=123454321
1111×1111=1234321
111×111=12321
11×11=121
1×1=1
0
02
020
0202
02022
020220
0202202
02022020
0202202
020220
02022
0202
020
02
0

Hap­py Palin­drome Day

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