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Search: id:A161365
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| A161365 |
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a(n)=10*n-a(n-1)-2 (with a(1)=9) |
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+0
3
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| 9, 9, 19, 19, 29, 29, 39, 39, 49, 49, 59, 59, 69, 69, 79, 79, 89, 89, 99, 99, 109, 109, 119, 119, 129, 129, 139, 139, 149, 149, 159, 159, 169, 169, 179, 179, 189, 189, 199, 199, 209, 209, 219, 219, 229, 229, 239, 239, 249, 249, 259, 259, 269, 269, 279, 279, 289
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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For n=2, a(2)=10*2-9-2=9; n=3, a(3)=10*3-9-2=19; n=4, a(4)=10*4-19-2=19
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KEYWORD
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nonn,new
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 25 2009
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