id:A045887 - OEIS Search Results

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Number of distinct even numbers visible as substrings of n.

+0
1

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 2, 4, 2, 4 (list; graph; listen)

	OFFSET	`0,21`
	EXAMPLE	`a(124)=5 because we can form the following even numbers: 2,4,12,14,24. a(24)=2 because we can form 2,4.`
	CROSSREFS	`Sequence in context: A089048 A133162 A079806 this_sequence A056832 A105931 A126864` `Adjacent sequences: A045884 A045885 A045886 this_sequence A045888 A045889 A045890`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Felice Russo (felice.russo(AT)katamail.com)`
	EXTENSIONS	`More terms from Fabian Rothelius (fabian.rothelius(AT)telia.com), Feb 08 2001`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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