id:A083734 - OEIS Search Results

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Pseudoprimes to bases 3 and 5.

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1541, 1729, 1891, 2821, 6601, 8911, 15841, 29341, 41041, 46657, 52633, 63973, 75361, 88831, 101101, 112141, 115921, 126217, 146611, 162401, 172081, 188461, 218791, 252601, 294409, 314821, 334153, 340561, 342271, 399001, 410041, 416641 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`F. Richman, Primality testing with Fermat's little theorem`
	FORMULA	`a(n) = n-th positive integer k(>1) such that 3^(k-1) = 1 (mod k) and 5^(k-1) = 1 (mod k)`
	EXAMPLE	`a(1)=1541 since it is the first number such that 3^(k-1) = 1 (mod k) and 5^(k-1) = 1 (mod k)`
	PROGRAM	`Assembly`
	CROSSREFS	`Adjacent sequences: A083731 A083732 A083733 this_sequence A083735 A083736 A083737` `Sequence in context: A133354 A104167 A092717 this_sequence A137598 A133560 A038009`
	KEYWORD	`easy,nonn`
	AUTHOR	`Serhat Sevki Dincer (sevki(AT)ug.bilkent.edu.tr), May 05 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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