id:A103755 - OEIS Search Results

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Number of contiguous digits i in the counting numbers, for i=1.

+0
1

1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Write the natural numbers as an infinite sequence of digits, starting at the left; and count the digits of each group of "1"'s you encounter (the smallest "groups" have one "1").`
	EXAMPLE	`a(1)=1: the first "1" of the counting numbers, isolated.` `a(2)=1: the second "1", first digit of number 10, isolated.` `a(3)=3 two "1"'s of 11 and one "1" of 12 = three "1"'s, the next group of "1"'s.`
	CROSSREFS	`Sequence in context: A134108 A094404 A103756 this_sequence A093818 A097031 A120263` `Adjacent sequences: A103752 A103753 A103754 this_sequence A103756 A103757 A103758`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Mar 28 2005`

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.

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