A123699 - OEIS

This site is supported by donations to The OEIS Foundation.

A123699

Smallest b such that all digits are distinct in base b representation of n.

1, 2, 3, 4, 3, 3, 3, 4, 4, 5, 3, 4, 4, 4, 3, 5, 5, 4, 3, 5, 3, 5, 5, 4, 6, 6, 4, 4, 5, 4, 6, 6, 4, 6, 4, 4, 7, 5, 4, 5, 6, 5, 7, 4, 4, 7, 5, 5, 4, 4, 5, 4, 5, 4, 5, 4, 4, 5, 5, 6, 8, 6, 6, 9, 5, 5, 7, 6, 5, 5, 5, 7, 5, 7, 4, 5, 5, 4, 5, 5, 6, 5, 6, 5, 5, 5, 7, 7, 5, 6, 6, 8, 7, 6, 5, 5, 5, 8, 4, 11, 5, 5, 5, 7, 5 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(A123700(n)) = n and a(m) <> n for m < A123700(n).` `See A123688 for another version of the same sequence. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 15 2008`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..10000`
	EXAMPLE	`n=10: 1010 [b=2] = 101 [b=3] = 22 [b=4] = 20 [b=5]: a(10)=5;` `n=11: 1011 [b=2] = 102 [b=3]: a(11)=3;` `n=12: 1100 [b=2] = 110 [b=3] = 30 [b=4]: a(12)=4;` `n=13: 1101 [b=2] = 111 [b=3] = 31 [b=4]: a(13)=4;` `n=14: 1110 [b=2] = 112 [b=3] = 32 [b=4]: a(14)=4;` `n=15: 1111 [b=2] = 120 [b=3]: a(15)=3.`
	CROSSREFS	`Sequence in context: A111880 A101497 A065870 * A119352 A205010 A204932` `Adjacent sequences: A123696 A123697 A123698 * A123700 A123701 A123702`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 08 2006`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 00:09 EST 2012. Contains 205978 sequences.