id:A070173 - OEIS Search Results

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n! and 2^n+1 are relatively primes.

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1, 2, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 128, 136, 144, 152, 160, 176, 184, 192, 200, 208, 224, 232, 248, 256, 272, 288, 304, 320, 352, 368, 384, 400, 416, 448, 464, 480, 496, 512, 544, 576, 592, 608, 640, 656, 688, 704, 752, 768 (list; graph; listen)

	OFFSET	`1,2`
	PROGRAM	`(PARI) for(n=1, 1255, if(gcd(n!, 2^n+1)==1, print1(n, ", ")))`
	CROSSREFS	`Cf. A069180.` `Sequence in context: A001212 A118030 A047836 this_sequence A116882 A069519 A087980` `Adjacent sequences: A070170 A070171 A070172 this_sequence A070174 A070175 A070176`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 06 2002`

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

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