id:A124771 - OEIS Search Results

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Number of distinct subsequences for compositions in standard order.

+0
2

1, 2, 2, 3, 2, 4, 4, 4, 2, 4, 3, 6, 4, 6, 6, 5, 2, 4, 4, 6, 4, 6, 6, 8, 4, 6, 6, 9, 6, 9, 8, 6, 2, 4, 4, 6, 3, 7, 7, 8, 4, 7, 4, 9, 7, 8, 9, 10, 4, 6, 7, 9, 7, 9, 8, 12, 6, 9, 9, 12, 8, 12, 10, 7, 2, 4, 4, 6, 4, 7, 7, 8, 4, 6, 6, 10, 6, 10, 10, 10, 4, 7, 6, 10, 6, 8, 9, 12, 7, 10, 9, 12, 10, 12, 12, 12, 4 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`The standard order of compositions is given by A066099.`
	FORMULA	`a(n) = A124770(n) + 1.`
	EXAMPLE	`Composition number 11 is 2,1,1; the subsequences are (empty); 1; 2; 1,1; 2,1; 2,1,1; so a(11) = 6.` `The table starts:` `1` `2` `1 2` `1 3 3 3`
	CROSSREFS	`Cf. A066099, A124770, A011782 (row lengths).` `Sequence in context: A049822 A140060 A164341 this_sequence A066589 A007897 A106289` `Adjacent sequences: A124768 A124769 A124770 this_sequence A124772 A124773 A124774`
	KEYWORD	`easy,nonn,tabf`
	AUTHOR	`Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Nov 06 2006`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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