A133395 - OEIS

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A133395

Terms in A061725 that are of form 3*prime.

6, 51, 123, 291, 843, 1371, 1851, 2811, 5331, 6243, 6891, 9411, 18771, 36483, 54291, 63003, 69171, 72363, 73443, 76731, 78963, 128883, 143643, 151323, 187491, 212523, 229443, 271443, 292683, 332931, 361203, 398163, 418611, 458331, 477483, 516963 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`3\|p^2+2 for all p except 3 hence 3\|A061725(n) for all n except n=2. If p^2+2 is semiprime it is of form 3*prime. Cf. A061725 (p^2+2 where p=prime.)`
	CROSSREFS	`Cf. A061725.` `Sequence in context: A043084 A113653 A173082 * A050916 A011790 A202754` `Adjacent sequences: A133392 A133393 A133394 * A133396 A133397 A133398`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Dec 22 2007`
	EXTENSIONS	`Typo in Comment corrected by Shai Covo (green355(AT)netvision.net.il), Oct 11 2010`

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Last modified February 14 15:30 EST 2012. Contains 205632 sequences.