id:A068480 - OEIS Search Results

Search: id:A068480

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Numbers n such that gcd(n!-1,2^n+1)>1.

+0
2

1, 29, 41, 53, 69, 105, 125, 141, 153, 165, 189, 233, 249, 273, 293, 321, 329, 405, 413, 429, 441, 453, 485, 581, 585, 629, 641, 653, 713, 729, 741, 761, 765, 809, 813, 849, 893, 905, 989, 993, 1005, 1013, 1041, 1049, 1089, 1121, 1125, 1133, 1169, 1205 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A101007 A155575 A125516 this_sequence A161616 A027343 A069454` `Adjacent sequences: A068477 A068478 A068479 this_sequence A068481 A068482 A068483`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 10 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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