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Search: id:A089303
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| A089303 |
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Concatenation of 1 n times divided by n. |
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+0
1
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| 1, 5, 37, 277, 2222, 18518, 158730, 1388888, 12345679, 111111111, 1010101010, 9259259259, 85470085470, 793650793650, 7407407407407, 69444444444444, 653594771241830, 6172839506172839, 58479532163742690, 555555555555555555
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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a(n) = Floor[(10^n-1)/(9n)].
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PROGRAM
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(Other) sage: [floor(gaussian_binomial(n, 1, 10)/n) for n in xrange(1, 21)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 29 2009]
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CROSSREFS
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Sequence in context: A108049 A121141 A083232 this_sequence A164595 A046636 A091126
Adjacent sequences: A089300 A089301 A089302 this_sequence A089304 A089305 A089306
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 31 2003
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EXTENSIONS
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More terms from Sam Alexander (amnalexander(AT)yahoo.com), Feb 27 2004
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