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2, 12, 104, 1008, 10272, 107712, 1150592, 12451584, 136053248, 1497664512, 16583583744, 184511361024, 2061074178048, 23100352413696, 259648659554304, 2925683135152128, 33037383972814848, 373774017998094336, 4235888981636022272, 48076611822491271168
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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REFERENCES
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Andras Kornai, Mathematical Linguistics (Springer-Verlag 2008), p. 36. (Gives a sequence which matches the first five terms.)
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LINKS
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MATHEMATICA
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Table[2^(n+1)*LegendreP[n, 3], {n, 0, 40}] (* G. C. Greubel, May 22 2023 *)
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PROG
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(Magma) [2^(n+1)*Evaluate(LegendrePolynomial(n), 3): n in [0..40]]; // G. C. Greubel, May 22 2023
(SageMath) [2^(n+1)*gen_legendre_P(n, 0, 3) for n in range(41)] # G. C. Greubel, May 22 2023
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Eric Bach (bach(AT)cs.wisc.edu), Oct 15 2009
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EXTENSIONS
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STATUS
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approved
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