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A185810
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Riordan array ((1+x-sqrt(1-2x-3x^2))/(2x(1-x)),(1+x-sqrt(1-2x-3x^2))).
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0
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1, 2, 2, 3, 6, 4, 5, 12, 16, 8, 9, 24, 40, 40, 16, 18, 50, 92, 120, 96, 32, 39, 110, 212, 312, 336, 224, 64, 90, 254, 500, 784, 976, 896, 512, 128
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OFFSET
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0,2
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LINKS
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FORMULA
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Riordan array ((1+x-sqrt(1-2x-3x^2))/(2x(1-x)),(1+x-sqrt(1-2x-3x^2))).
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EXAMPLE
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[1]
[2,2]
[3,6,4]
[5,12,16,8]
[9,24,40,40,16]
[18,50,92,120,96,32]
[39,110,212,312,336,224,64]
[90,254,500,784,976,896,512,128]
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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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