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Search: id:A114000
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| A114000 |
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Number triangle related to divisors of 2n+1. |
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+0
2
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| 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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0,1
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COMMENT
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Rows sums are A099774. Rows as decimals give A114001.
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FORMULA
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G.f.: Sum_{k>0} x^k/(1-x^(2k+1)).
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EXAMPLE
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Triangle begins
1;
1,1;
1,0,1;
1,0,0,1;
1,1,0,0,1;
1,0,0,0,0,1;
1,0,0,0,0,0,1;
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CROSSREFS
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Sequence in context: A158856 A154957 A140865 this_sequence A131218 A113998 A070909
Adjacent sequences: A113997 A113998 A113999 this_sequence A114001 A114002 A114003
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KEYWORD
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easy,nonn,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Nov 12 2005
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