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Search: id:A092259
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| A092259 |
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Numbers that are congruent to {4, 8} mod 12. |
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+0
4
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| 4, 8, 16, 20, 28, 32, 40, 44, 52, 56, 64, 68, 76, 80, 88, 92, 100, 104, 112, 116, 124, 128, 136, 140, 148, 152, 160, 164, 172, 176, 184, 188, 196, 200, 208, 212, 220, 224, 232, 236, 244, 248, 256, 260, 268, 272, 280, 284, 292, 296, 304, 308, 316, 320, 328, 332
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OFFSET
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1,1
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COMMENT
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Except for the first term, a(n)=12*n-a(n-1), (with a(1)=8) Example: forn n=2, a(2)=12*2-8=16; n=3, a(3)=12*3-16=20; n=4, a(4)=12*4-20=28 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Oct 22 2009]
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FORMULA
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a(n) = 4*A001651(n).
Iff phi[n]=phi[3n/2], then n is in A069587. - Labos E. (labos(AT)ana.sote.hu), Feb 25 2004
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CROSSREFS
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Fourth row of A092260.
Sequence in context: A143718 A031399 A076488 this_sequence A036693 A129370 A053688
Adjacent sequences: A092256 A092257 A092258 this_sequence A092260 A092261 A092262
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KEYWORD
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nonn
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AUTHOR
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Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Feb 19 2004
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EXTENSIONS
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Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 21 2004
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