A074980 - OEIS

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A074980

Numbers which are not of the form m^p - n^q where p = 2 or 3, q = 2 or 3.

6, 10, 14, 34, 42, 46, 50, 58, 62, 66, 70, 78, 82, 86, 90, 102, 110, 114, 122, 130, 134, 158, 162, 166, 178, 182, 194, 202, 206, 210, 214, 226, 230, 234, 238, 246, 250, 254, 258, 266, 274, 278, 290, 302, 306, 310, 314, 322, 326, 330, 338, 354, 358, 374, 378 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`This is a famous hard problem and the terms shown are only conjectured values.` `Checked for squares and cubes through 1.134x10^25.`
	LINKS	`Alf van der Poorten, Remarks on the sequence of 'perfect' powers`
	EXAMPLE	`146 is not in the sequence because 146 = 195^3-2723^2.`
	CROSSREFS	`Cf. A074981.` `Sequence in context: A119623 A129119 A171251 * A059218 A095678 A151972` `Adjacent sequences: A074977 A074978 A074979 * A074981 A074982 A074983`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Oct 07 2002`
	EXTENSIONS	`Corrected and extended by Jud McCranie (JudMcCr(AT)BellSouth.net), Oct 10 2002`

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Last modified February 15 17:46 EST 2012. Contains 205835 sequences.