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A138240
Expansion of (1/4)(1-sqrt(1-12x)/sqrt(1-4x)).
+0
2
0, 1, 6, 40, 296, 2400, 20928, 192768, 1848960, 18277888, 184890368, 1904259072, 19898765312, 210424545280, 2247494172672, 24209586782208, 262696649785344, 2868744309571584, 31504024885002240, 347697247933169664
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 6 19:58 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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