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A152254 Twice A084773. 5
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)
OFFSET
0,1
REFERENCES
Andras Kornai, Mathematical Linguistics (Springer-Verlag 2008), p. 36. (Gives a sequence which matches the first five terms.)
LINKS
MATHEMATICA
Table[2^(n+1)*LegendreP[n, 3], {n, 0, 40}] (* G. C. Greubel, May 22 2023 *)
PROG
(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
CROSSREFS
Sequence in context: A052693 A050621 A326237 * A157328 A061632 A301833
KEYWORD
nonn
AUTHOR
Eric Bach (bach(AT)cs.wisc.edu), Oct 15 2009
EXTENSIONS
Offset changed by Petros Hadjicostas, Feb 09 2021
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)