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A112477
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Riordan array ((1-x+sqrt(1+6x+x^2))/2, (sqrt(1+6x+x^2)-x-1)/2).
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2
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1, 1, 1, -2, -1, 1, 6, 2, -3, 1, -22, -6, 10, -5, 1, 90, 22, -38, 22, -7, 1, -394, -90, 158, -98, 38, -9, 1, 1806, 394, -698, 450, -194, 58, -11, 1, -8558, -1806, 3218, -2126, 978, -334, 82, -13, 1, 41586, 8558, -15310, 10286, -4942, 1838, -526, 110, -15, 1, -206098, -41586, 74614, -50746, 25150, -9922, 3142, -778, 142
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OFFSET
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0,4
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LINKS
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EXAMPLE
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Triangle starts
1;
1,1;
-2,-1,1;
6,2,-3,1;
-22,-6,10,-5,1;
90,22,-38,22,-7,1;
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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