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A127749 Inverse of number triangle A(n,k)=if(k<=n,if(n<=2k,1/(2n+1),0),0). +0
2
1, 0, 3, 0, -3, 5, 0, 3, -5, 7, 0, 0, 0, -7, 9, 0, -3, 5, 0, -9, 11, 0, 0, 0, 0, 0, -11, 13, 0, 3, -5, 7, 0, 0, -13, 15, 0, 0, 0, 0, 0, 0, 0, -15, 17, 0, 0, 0, -7, 9, 0, 0, 0, -17, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, -19, 21, 0, -3, 5 (list; table; graph; listen)
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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