id:A121260 - OEIS Search Results

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Beginning with a(0)=0, take a(n) to be the smallest number not equal to the product of two consecutive (not distinct) earlier terms.

+0
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0, 0, 1, 1, 2, 2, 3, 3, 5, 5, 7, 7, 8, 8, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 33, 33, 34, 34, 36, 36, 37, 37, 38, 38, 39, 39, 40, 40, 41, 41, 42, 42 (list; graph; listen)

	OFFSET	`1,5`
	CROSSREFS	`For a(n) not equal to the product of two consecutive (distinct) earlier terms: Cf. A121229.` `Adjacent sequences: A121257 A121258 A121259 this_sequence A121261 A121262 A121263` `Sequence in context: A086609 A035031 A035032 this_sequence A121261 A085885 A064986`
	KEYWORD	`easy,nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Aug 23 2006`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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