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Search: id:A117446
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| A117446 |
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Number triangle C(L(k/3),n-k) where L(j/p) is the Legendre symbol of j and p. |
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+0
4
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| 1, 0, 1, 0, 1, 1, 0, 0, -1, 1, 0, 0, 1, 0, 1, 0, 0, -1, 0, 1, 1, 0, 0, 1, 0, 0, -1, 1, 0, 0, -1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, -1, 0, 1, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 1, 0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 1, 0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 1, 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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Row sums are A117447. Diagonal sums are A117448. Inverse is A117449.
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EXAMPLE
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Triangle begins
1,
0, 1,
0, 1, 1,
0, 0, -1, 1,
0, 0, 1, 0, 1,
0, 0, -1, 0, 1, 1,
0, 0, 1, 0, 0, -1, 1,
0, 0, -1, 0, 0, 1, 0, 1,
0, 0, 1, 0, 0, -1, 0, 1, 1,
0, 0, -1, 0, 0, 1, 0, 0, -1, 1,
0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 1,
0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 1,
0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 1,
0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 1,
0, 0, 1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 1
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CROSSREFS
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Sequence in context: A106346 A127241 A087748 this_sequence A101688 A134540 A128430
Adjacent sequences: A117443 A117444 A117445 this_sequence A117447 A117448 A117449
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KEYWORD
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easy,sign,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Mar 16 2006
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