id:A060209 - OEIS Search Results

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Dunckley sequence: number of bases in which composite n is Smith.

+0
1

0, 0, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 2, 2, 1, 3, 1, 2, 1, 1, 1, 4, 1, 2, 3, 1, 2, 2, 2, 3, 1, 4, 1, 3, 3, 5, 1, 4, 3, 1, 3, 1, 1, 5, 6, 2, 2, 1, 1, 7, 1, 2, 2, 4, 6, 1, 2, 1, 2, 1, 2, 1, 4, 1, 1, 2, 2, 2, 5, 3, 7, 3, 2, 4, 1, 1, 6, 3, 1, 4, 2, 3, 2, 3, 1, 1, 1, 5, 2, 4, 1, 5, 5, 1, 3, 2, 1, 5, 3, 2 (list; graph; listen)

	OFFSET	`6,7`
	REFERENCES	`A. Vella and D. Vella, On Smith and Dunckley Numbers, Mathematics Today (Bull. Inst. Math. Appl), Vol. 37, no. 2 (2001), 54-56.` `A. Vella and D. Vella, More Properties of Dunckley Numbers (in preparation)`
	EXAMPLE	`6, 8, 9 and 12 are not Smith in any base and so d(n) = 0 for these, 10 is Smith only in base 4 so d(10)=1`
	CROSSREFS	`A006753.` `Sequence in context: A122750 A030421 A085021 this_sequence A037830 A139039 A122172` `Adjacent sequences: A060206 A060207 A060208 this_sequence A060210 A060211 A060212`
	KEYWORD	`nonn`
	AUTHOR	`Alfred and Dominic Vella (dunckley(AT)thevellas.freeserve.co.uk), Mar 19 2001`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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