id:A055240 - OEIS Search Results

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Number of bases in which n is not divisible by any of its digits.

+0
7

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 3, 0, 3, 0, 1, 1, 6, 0, 3, 1, 2, 0, 7, 0, 7, 1, 4, 4, 7, 0, 9, 4, 6, 1, 11, 0, 13, 2, 3, 6, 17, 0, 11, 3, 8, 3, 18, 2, 13, 3, 11, 9, 22, 0, 18, 9, 8, 4, 15, 1, 23, 8, 16, 5, 24, 1, 24, 12, 11, 8, 24, 4, 29, 4, 15, 14, 31, 1, 22, 14, 21, 8, 34, 1, 23 (list; graph; listen)

	OFFSET	`1,17`
	EXAMPLE	`a(27)=2 because it is written as 27 in base 10 and 25 in base 11 and 27 is not divisible by 2, 5 or 7`
	CROSSREFS	`Cf. A055238-A055242.` `Sequence in context: A127802 A094901 A030220 this_sequence A115634 A010674 A021037` `Adjacent sequences: A055237 A055238 A055239 this_sequence A055241 A055242 A055243`
	KEYWORD	`base,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), May 04 2000`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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