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A138795 a(n) = (A138793(n+1)-A138793(n))/10^n. 0
2, 3, 4, 5, 6, 7, 8, 9, 1, 110, 2100, 31000, 410000, 5100000, 61000000, 710000000, 8100000000, 91000000000, 20000000000, 1200000000000, 22000000000000, 320000000000000, 4200000000000000, 52000000000000000, 620000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
First differences of A138793 divided by 10^n
LINKS
FORMULA
a(n) = A138793(n+1)-A138793(n)
MATHEMATICA
b = {}; a = {}; Do[w = RealDigits[n]; w = First[w]; Do[AppendTo[a, w[[k]]], {k, 1, Length[w]}]; p = FromDigits[Reverse[a]]; AppendTo[b, p], {n, 1, 61}]; c = {}; Do[AppendTo[c, (b[[n + 1]] - b[[n]])/(10^n)], {n, 1, Length[b] - 1}]; c (*Artur Jasinski*)
CROSSREFS
Sequence in context: A061816 A083960 A344486 * A297233 A177895 A340184
KEYWORD
base,nonn
AUTHOR
Artur Jasinski, Mar 30 2008
STATUS
approved

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Last modified August 18 20:24 EDT 2024. Contains 375276 sequences. (Running on oeis4.)