id:A133395 - OEIS Search Results

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Terms in A061725 that are of form 3*prime.

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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; listen)

	OFFSET	`1,1`
	COMMENT	`3\|p^2+2 for all p except 3 hence a3\|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: A136383 A043084 A113653 this_sequence A050916 A011790 A002295` `Adjacent sequences: A133392 A133393 A133394 this_sequence A133396 A133397 A133398`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Dec 22 2007`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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