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A098208 4th powers of A033175(n) near repdigit numbers. 0
1, 923521, 12003612721, 123111473904721, 1234222258516824721, 12345333336962946024721, 123456444444807407238024721, 1234567555555591851850158024721, 12345678666666670296296279358024721 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Display peculiar digit patterns.

LINKS

Table of n, a(n) for n=0..8.

FORMULA

From Chai Wah Wu, Nov 09 2018: (Start)

a(n) = 11111*a(n-1) - 11222110*a(n-2) + 1122211000*a(n-3) - 11111000000*a(n-4) + 10000000000*a(n-5) for n > 4.

G.f.: (-160000000000*x^4 - 102065000000*x^3 - 1753593000*x^2 - 912410*x - 1)/((x - 1)*(10*x - 1)*(100*x - 1)*(1000*x - 1)*(10000*x - 1)). (End)

MATHEMATICA

(FromDigits/@Table[Join[PadLeft[{}, n, 3], {1}], {n, 0, 20}])^4 (* Harvey P. Dale, Oct 20 2011 *)

CROSSREFS

Cf. A033175, A055557, A098207.

Sequence in context: A321323 A156428 A251954 * A251172 A105011 A345613

Adjacent sequences:  A098205 A098206 A098207 * A098209 A098210 A098211

KEYWORD

nonn,base

AUTHOR

Labos Elemer, Oct 20 2004

STATUS

approved

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Last modified October 6 07:09 EDT 2022. Contains 357262 sequences. (Running on oeis4.)