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A038749
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Coefficients arising in the enumeration of configurations of linear chains.
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2
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0, 0, 0, 2, 16, 96, 510, 2558, 12282, 57498, 263421, 1192480, 5330078, 23657520, 104106655, 455993276, 1984733843, 8609546380, 37164674383
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OFFSET
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1,4
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COMMENTS
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In the notation of Nemirovsky et al. (1992), a(n), the n-th term of this sequence is p_{n,m}^{(l)} with m=1 and l=3. These numbers are given in Table II (p. 1093) in the paper. This sequence can be used for the calculation of sequence A047057 via Eq. (5) in the paper by Nemirovsky et al. (1992). (Note that, by equations (7b) in the paper, p_{n,m=1}^{(1)} = 0 for all n >= 1. Also, p_{n,m=1}^{(2)} = A038747(n) for n >= 1.) - Petros Hadjicostas, Jan 04 2019
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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The first three 0's in the sequence were added by Petros Hadjicostas, Jan 04 2019 to make it agree with Table II (p. 1093) and Eq. (5) (p. 1090) in the paper by Nemirovsky et al. (1992).
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STATUS
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approved
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