id:A116039 - OEIS Search Results

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n+p(n)+p(p(n)) is a semiprime (A001358), where p(n) denotes the n-th prime.

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1, 2, 8, 9, 11, 12, 18, 19, 22, 23, 26, 29, 33, 35, 43, 47, 50, 53, 57, 59, 61, 69, 75, 76, 77, 78, 81, 89, 103, 105, 109, 112, 124, 125, 131, 135, 140, 141, 142, 143, 146, 151, 153, 155, 160, 166, 170, 175, 176, 177, 181, 189, 209, 211, 215, 216, 220, 225, 226 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`112+p(112)+p(p(112)) = 5242 = 2*2621.`
	CROSSREFS	`Cf. A001358, A116038.` `Adjacent sequences: A116036 A116037 A116038 this_sequence A116040 A116041 A116042` `Sequence in context: A037456 A019511 A103190 this_sequence A030334 A020676 A086678`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.

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