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Search: id:A141687
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| A141687 |
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Triangle read by rows: t(n,m) = 1 - Mod[(Prime[n] - Prime[m])/2, 2]. |
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1
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| 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Row sums are: {1, 1, 2, 3, 2, 3, 4, 5, 4, 6, 5, ...}.
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EXAMPLE
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{1},
{0, 1},
{1, 0, 1},
{1, 0, 1, 1},
{0, 1, 0, 0, 1},
{0, 1, 0, 0, 1, 1},
{1, 0, 1, 1, 0, 0, 1},
{1, 0, 1, 1, 0, 0, 1, 1},
{0, 1, 0, 0, 1, 1, 0, 0, 1},
{1, 0, 1, 1, 0, 0, 1, 1, 0, 1},
{0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1}
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MATHEMATICA
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Table[Table[1 - Mod[(Prime[n] - Prime[m])/2, 2], {m, 2, n}], {n, 2, 12}]; Flatten[%]
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CROSSREFS
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Adjacent sequences: A141684 A141685 A141686 this_sequence A141688 A141689 A141690
Sequence in context: A005614 A071036 A166946 this_sequence A057078 A127245 A088150
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KEYWORD
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nonn,tabl
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AUTHOR
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Roger L. Bagula, Gary W. Adamson and Mats Granvik (rlbagulatftn(AT)yahoo.com), Sep 09 2008
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EXTENSIONS
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Edited by N. J. A. Sloane (njas(AT)research.att.com), Sep 13 2008
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