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A066557 Largest n-digit multiple of n. 4
9, 98, 999, 9996, 99995, 999996, 9999997, 99999992, 999999999, 9999999990, 99999999990, 999999999996, 9999999999990, 99999999999998, 999999999999990, 9999999999999984, 99999999999999990, 999999999999999990, 9999999999999999990, 99999999999999999980 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..150

FORMULA

a(n) = floor((10^n-1)/n)*n.

PROG

(PARI) { for (n=1, 150, write("b066557.txt", n, " ", floor((10^n - 1)/n)*n) ) } \\ Harry J. Smith, Feb 22 2010

CROSSREFS

Cf. A053041, A066558.

Sequence in context: A225608 A220490 A024115 * A289214 A121706 A306567

Adjacent sequences:  A066554 A066555 A066556 * A066558 A066559 A066560

KEYWORD

nonn,base

AUTHOR

Amarnath Murthy, Dec 17 2001

EXTENSIONS

More terms and formula from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 24 2001

STATUS

approved

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Last modified February 24 21:23 EST 2020. Contains 332211 sequences. (Running on oeis4.)