id:A093221 - OEIS Search Results

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a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 21.

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0, 8421, 75672, 760273087, 7677679779737737, 99997899997, 777300377790097776006777, 7777778477777721777777, 77777752577777725277777752, 7777770021777777008477777700 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Hans Havermann, Table of A093211-A093299`
	EXAMPLE	`a(2) is 8421 because its length-2 substrings (84, 42, 21) are all distinct and divisible by 21 and there is no larger number with this property`
	CROSSREFS	`Cf. A093211, A093212, ..., A093299.` `Sequence in context: A049357 A069402 A139005 this_sequence A023321 A116258 A116311` `Adjacent sequences: A093218 A093219 A093220 this_sequence A093222 A093223 A093224`
	KEYWORD	`base,nonn`
	AUTHOR	`Hans Havermann (pxp(AT)rogers.com), Mar 28 2004`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research