id:A136327 - OEIS Search Results

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Numbers n such that C(2n-1,n-1) mod n == 1.

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	OFFSET	`1,1`
	COMMENT	`A099905(n) = 1. Contains primes, squares of odd primes and cubes of primes >= 5.`
	REFERENCES	`R. J. McIntosh, On the converse of Wolstenholme's Theorem, Acta Arithm., LXXI.4 (1995), 381-389.`
	EXAMPLE	`a(3)=5 because C(9,4) = 126 == 1 mod 5.`
	CROSSREFS	`Cf. A099905.` `Adjacent sequences: A136324 A136325 A136326 this_sequence A136328 A136329 A136330` `Sequence in context: A065520 A090332 A070566 this_sequence A132630 A033946 A095415`
	KEYWORD	`nonn`
	AUTHOR	`Franz Vrabec (franz.vrabec(AT)planetuniqa.at), Mar 26 2008`

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.

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