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 A117446 Number triangle C(L(k/3),n-k) where L(j/p) is the Legendre symbol of j and p. 3
 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; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Row sums are A117447. Diagonal sums are A117448. Inverse is A117449. LINKS EXAMPLE 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 CROSSREFS Sequence in context: A167371 A127241 A087748 * A187034 A101688 A155029 Adjacent sequences:  A117443 A117444 A117445 * A117447 A117448 A117449 KEYWORD easy,sign,tabl AUTHOR Paul Barry, Mar 16 2006 STATUS approved

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Last modified April 17 05:36 EDT 2021. Contains 343059 sequences. (Running on oeis4.)