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Search: id:A047617
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| A047617 |
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Numbers that are congruent to {2, 5} mod 8. |
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+0
1
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| 2, 5, 10, 13, 18, 21, 26, 29, 34, 37, 42, 45, 50, 53, 58, 61, 66, 69, 74, 77, 82, 85, 90, 93, 98, 101, 106, 109, 114, 117, 122, 125, 130, 133, 138, 141, 146, 149, 154, 157, 162, 165, 170, 173, 178, 181, 186, 189
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n)=8*n-a(n-1)-9 (with a(1)=2) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 24 2009]
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EXAMPLE
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For n=2, a(2)=8*2-2-9=5; n=3, a(3)=8*3-5-9=10; n=4, a(4)=8*4-10-9=13 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 24 2009]
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CROSSREFS
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Sequence in context: A003814 A031396 A003654 this_sequence A135467 A018571 A064233
Adjacent sequences: A047614 A047615 A047616 this_sequence A047618 A047619 A047620
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KEYWORD
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nonn,new
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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