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A080448 a(1) = 4, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1). Also a(n) is not divisible by 10. 8
4, 12, 108, 1188, 10692, 117612, 1058508, 11643588, 104792292, 1152715212, 10374436908, 114118805988, 1027069253892, 11297761792812, 101679856135308, 1118478417488388, 10066305757395492, 110729363331350412 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

CROSSREFS

Cf. A080445, A080446, A080447, A080449, A080450, A080451, A080452, A080453.

Sequence in context: A079822 A216043 A245647 * A155174 A053491 A285451

Adjacent sequences:  A080445 A080446 A080447 * A080449 A080450 A080451

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Feb 23 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

STATUS

approved

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Last modified September 18 12:38 EDT 2019. Contains 327170 sequences. (Running on oeis4.)