id:A076990 - OEIS Search Results

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a(1) = 1, a(2) = 2, a(n) = smallest number not occurring earlier such that the sum of three successive terms is prime.

+0
3

1, 2, 4, 5, 8, 6, 3, 10, 16, 11, 14, 12, 15, 20, 18, 9, 26, 24, 17, 30, 32, 21, 36, 22, 13, 38, 28, 7, 44, 46, 19, 42, 40, 25, 48, 34, 27, 52, 58, 29, 50, 60, 39, 64, 54, 31, 66, 70, 37, 56, 74, 33, 72, 62, 23, 78, 80, 35, 76, 68, 47, 82, 94, 51, 84, 88, 55, 86, 92, 45, 90, 98 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`After 8 and 6 the next term is 3 as 8+6+3 = 17 is a prime.`
	CROSSREFS	`Cf. A076045.` `Sequence in context: A097698 A101410 A110991 this_sequence A057168 A087711 A123128` `Adjacent sequences: A076987 A076988 A076989 this_sequence A076991 A076992 A076993`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 25 2002`
	EXTENSIONS	`More terms from David Garber (garber(AT)math.huji.ac.il), Oct 30 2002`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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