id:A114880 - OEIS Search Results

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a(n) is the largest base-3 string such that the n-th number coprime to 3 does not divide any substring of a(n).

+0
2

1, 212, 2111, 22222, 21112, 222111222, 212121212, 22112121, 212221222212, 2221221221222, 222222222222222, 22222222222222222, 1121212211122121211, 2121212121212121212, 112221112211111121, 21111111111111111111 (list; graph; listen)

	OFFSET	`2,2`
	EXAMPLE	`a(3) = 212 (base three) because the 3th number coprime to 4 is 4; and 4 does not divide any substring of a(3).`
	CROSSREFS	`Sequence in context: A088642 A078211 A158794 this_sequence A082828 A083962 A007942` `Adjacent sequences: A114877 A114878 A114879 this_sequence A114881 A114882 A114883`
	KEYWORD	`nonn,base`
	AUTHOR	`Don Reble (djr(AT)nk.ca), Feb 20 2006`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research