id:A079721 - OEIS Search Results

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Interemirp sequence: average of emirp pairs, analogous to interprimes.

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15, 24, 34, 51, 72, 76, 88, 102, 110, 131, 153, 162, 173, 189, 255, 324, 342, 353, 374, 545, 705, 721, 736, 741, 747, 756, 765, 838, 922, 939, 947, 960, 969, 977, 987, 1000, 1015, 1026, 1032, 1047, 1065, 1080, 1094, 1100, 1106, 1130, 1152, 1167, 1187 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`M. J. Halm, Sequences`
	FORMULA	`a(n) = (x(n)+x(n+1))/2 where x(n) is the n-th emirp number`
	EXAMPLE	`E.g. a(1) = 15 because the first two emirps are 13 and 17 and (13 + 17)/2 = 15`
	CROSSREFS	`Cf. A006567, A024675.` `Sequence in context: A114558 A035408 A081829 this_sequence A089952 A162964 A067343` `Adjacent sequences: A079718 A079719 A079720 this_sequence A079722 A079723 A079724`
	KEYWORD	`nonn`
	AUTHOR	`Michael Joseph Halm (hierogamous(AT)lycos.com), Feb 17 2003`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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