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A113562 Least multiple of n in which the n-th digit from left is 7. 2
7, 170, 117, 10072, 100070, 1000074, 1000027, 100000072, 100000017, 10000000070, 10000000087, 1000000000176, 1000000000077, 100000000000278, 1000000000000170, 10000000000000176, 10000000000000067, 1000000000000000170 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
a(4)= 10072, in which the fourth digit is 7.
MATHEMATICA
lmn7[n_]:=Module[{k=Ceiling[10^(n-1)/n]}, While[NumberDigit[k n, IntegerLength[ k n]-n]!=7, k++]; k n]; Array[lmn7, 10] (* The program generates the first 10 terms of the sequence. *) (* Harvey P. Dale, Nov 02 2022 *)
CROSSREFS
Sequence in context: A351154 A005019 A172027 * A157203 A178019 A337676
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Nov 06 2005
EXTENSIONS
More terms from Joshua Zucker, May 03 2006
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)