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A093219 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 19. 0
0, 19576, 722855133, 77714446555, 1100133003990098800855005, 99960944490466640699960, 444440433333037777707, 6666606077777070555550509999909011111010, 999999982, 11111101019999990909555555050577777707076666660606, 777777707773333333033344444440444 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Based on an Erich Friedman observation of a(3).

LINKS

Table of n, a(n) for n=1..11.

Hans Havermann, Table of A093211-A093299

EXAMPLE

a(2) is 19576 because its length-2 substrings (19, 95, 57, 76) are all distinct and divisible by 19 and there is no larger number with this property.

CROSSREFS

Cf. A093211, A093212, ..., A093299.

Sequence in context: A033869 A031801 A022213 * A184493 A339534 A319062

Adjacent sequences:  A093216 A093217 A093218 * A093220 A093221 A093222

KEYWORD

base,nonn

AUTHOR

Hans Havermann, Mar 27 2004

EXTENSIONS

a(11) from John Cerkan, Jul 13 2017

STATUS

approved

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Last modified June 12 23:20 EDT 2021. Contains 344979 sequences. (Running on oeis4.)