id:A061217 - OEIS Search Results

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Number of zeros in the concatenation n(n-1)(n-2)(n-3)...321.

+0
1

0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 12, 13, 14 (list; graph; listen)

	OFFSET	`0,20`
	EXAMPLE	`a(30) = 3 since number of zeros in 302928272625242322212019181716151413121110987654321 is 3.`
	CROSSREFS	`Sequence in context: A059995 A132272 A054899 this_sequence A102684 A025856 A103378` `Adjacent sequences: A061214 A061215 A061216 this_sequence A061218 A061219 A061220`
	KEYWORD	`nonn,base`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 22 2001`
	EXTENSIONS	`Corrected and extended by Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 05 2001.`

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Last modified September 6 00:03 EDT 2008. Contains 143485 sequences.

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