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A348166
a(n) = abs(A020338(n)-A338754(n))
0
0, 0, 0, 0, 0, 0, 0, 0, 0, 90, 0, 90, 180, 270, 360, 450, 540, 630, 720, 180, 90, 0, 90, 180, 270, 360, 450, 540, 630, 270, 180, 90, 0, 90, 180, 270, 360, 450, 540, 360, 270, 180, 90, 0, 90, 180, 270, 360, 450, 450, 360, 270, 180, 90, 0, 90, 180, 270, 360, 540, 450, 360, 270, 180, 90, 0, 90, 180, 270, 630, 540, 450, 360, 270, 180, 90
OFFSET
1,10
COMMENTS
All terms are multiples of 90.
FORMULA
a(A010785(n)) = 0
EXAMPLE
a(1) = abs(11-11) = 0
a(15) = abs(1515-1155) = 360
a(1965) = abs(19651965-11996655) = 7655310
PROG
(PARI) a(n)=abs(eval(Str(n, n))-fromdigits(digits(n), 100)*11) \\ Charles R Greathouse IV, Oct 04 2021
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
EXTENSIONS
Corrected by Charles R Greathouse IV, Oct 04 2021
STATUS
approved