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A112773
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3 together with primes multiplied by 3.
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1
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3, 6, 9, 15, 21, 33, 39, 51, 57, 69, 87, 93, 111, 123, 129, 141, 159, 177, 183, 201, 213, 219, 237, 249, 267, 291, 303, 309, 321, 327, 339, 381, 393, 411, 417, 447, 453, 471, 489, 501, 519, 537, 543, 573, 579, 591, 597, 633, 669, 681, 687, 699, 717, 723, 753
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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FORMULA
| a(n) = 3*A008578(n). - Omar E. Pol, Jan 31 2012
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MATHEMATICA
| Insert[Table[3Prime[n], {n, 1, 60}], 3, 1] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 30 2006
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CROSSREFS
| Essentially the same as A001748.
Cf. A000040, A001747, A008585, A046315.
Sequence in context: A031940 A007187 A082004 * A070885 A002597 A057855
Adjacent sequences: A112770 A112771 A112772 * A112774 A112775 A112776
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KEYWORD
| easy,nonn
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AUTHOR
| Jonathan Vos Post (jvospost3(AT)gmail.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 15 2005
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EXTENSIONS
| Edited by N. J. A. Sloane (njas(AT)research.att.com), Apr 28 2008 at the suggestion of Alexander Povolotsky.
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