id:A098783 - OEIS Search Results

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Smallest number not occurring earlier such that the concatenation of the numbers has the property that the first two digits sum to 9, the next two to 9, the next two to 9, the next two to 9, etc.

+0
1

0, 9, 1, 8, 2, 7, 3, 6, 4, 5, 18, 27, 36, 45, 54, 63, 72, 81, 90, 180, 91, 80, 92, 70, 93, 60, 94, 50, 95, 40, 96, 30, 97, 20, 98, 10, 909, 181, 82, 71, 83, 61, 84, 51, 85, 41, 86, 31, 87, 21, 88, 11, 809, 182, 73, 62, 74, 52, 75, 42, 76, 32, 77, 22, 78, 12, 709, 183, 64, 53, 65 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A065444 A010169 A113657 this_sequence A011111 A109871 A087500` `Adjacent sequences: A098780 A098781 A098782 this_sequence A098784 A098785 A098786`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Eric Angelini (eric.angelini(AT)kntv.be), Oct 04 2004`

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

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