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Search: id:A083448
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| A083448 |
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Concatenation of first n numbers - n!. a(n) = 1234567891011... up to n - 1*2*3*4*5*6*7*8*9*10*11... up to n. |
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+0
1
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| 0, 10, 117, 1210, 12225, 122736, 1229527, 12305358, 123093909, 12342050110, 1234527974211, 123456310099512, 12345672683090413, 1234567803832830114, 123456787793437763415, 12345678889188423253516
(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) = A007908(n) - A000142(n). - David Wasserman (wasserma(AT)spawar.navy.mil), Nov 09 2004
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EXAMPLE
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a(6) = 123456-720=122736.
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CROSSREFS
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Adjacent sequences: A083445 A083446 A083447 this_sequence A083449 A083450 A083451
Sequence in context: A138845 A079678 A089833 this_sequence A024129 A122887 A145510
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KEYWORD
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base,easy,nonn
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AUTHOR
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Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), May 01 2003
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EXTENSIONS
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More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Nov 09 2004
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