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Search: id:A106387
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| A106387 |
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Numbers j such that 6*(j^2) + 6*j + 1 = 11*k. |
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4
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| 4, 6, 15, 17, 26, 28, 37, 39, 48, 50, 59, 61, 70, 72, 81, 83, 92, 94, 103, 105, 114, 116, 125, 127, 136, 138, 147, 149, 158, 160, 169, 171, 180, 182, 191, 193, 202, 204, 213, 215, 224, 226, 235, 237, 246, 248, 257, 259, 268, 270, 279, 281, 290, 292, 301, 303
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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k sequence = A106388
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FORMULA
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j(1)=4, j(2)=6 then j(n)=j(n-2)+11
a(n)=11*n-a(n-1)-12 (with a(1)=4) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 26 2009]
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EXAMPLE
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For n=2, a(2)=11*2-4-12=6; n=3, a(3)=11*3-6-12=15; n=4, a(4)=11*4-15-12=17 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 26 2009]
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CROSSREFS
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Cf. A106388, A106389, A106390.
Sequence in context: A048753 A055719 A117883 this_sequence A034771 A034764 A119034
Adjacent sequences: A106384 A106385 A106386 this_sequence A106388 A106389 A106390
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KEYWORD
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nonn,new
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), May 01 2005
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EXTENSIONS
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More terms from Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 26 2009
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