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A138594
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Sums of 6 or more consecutive integers.
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1
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15, 21, 27, 28, 33, 35, 36, 39, 42, 44, 45, 49, 51, 52, 54, 55, 56, 57, 60, 63, 65, 66, 68, 69, 70, 72, 75, 76, 77, 78, 81, 84, 85, 87, 88, 90, 91, 92, 93, 95, 98, 99, 100, 102, 104, 105, 108, 110, 111, 112, 114, 115, 116, 117, 119, 120, 121, 123, 124, 125, 126, 129
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Also, the numbers of the form s*k+A000217(k-1), s>=0, k>=6. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 31 2008]
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EXAMPLE
| 0+1+2+3+4+5=15, 1+2+3+4+5+6=21, 2+3+4+5+6+7=27, 1+2+3+4+5+6+7=28, ...
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MATHEMATICA
| Array[r, 9]; k=0; For[i=0, i<=77, a=i*5+10; For[j=i+5, j<=77, a=a+j; k++; r[k]=a; j++ ]; i++ ]; q=Union[Array[r, k]]; StringTake[ToString[q], 123]
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CROSSREFS
| Sequence in context: A020204 A057489 A070811 * A131651 A134642 A072974
Adjacent sequences: A138591 A138592 A138593 * A138595 A138596 A138597
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KEYWORD
| nonn
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AUTHOR
| Vladimir Orlovsky (4vladimir(AT)gmail.com), May 13 2008
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EXTENSIONS
| More terms from Vladimir Orlovsky (4vladimir(AT)gmail.com), Mar 07 2010
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