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A038996
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Sublattices of index n in generic 9-dimensional lattice.
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2
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1, 511, 9841, 174251, 488281, 5028751, 6725601, 50955971, 72636421, 249511591, 235794769, 1714804091, 883708281, 3436782111, 4805173321, 13910980083, 7411742281, 37117211131, 17927094321, 85083452531
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| M. Baake, "Solution of coincidence problem...", in R. V. Moody, ed., Math. of Long-Range Aperiodic Order, Kluwer 1997, pp. 9-44.
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LINKS
| Index entries for sequences related to sublattices
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FORMULA
| f(Q, n)=Sum d*f(Q-1, d), d|n; here Q=9.
Multiplicative with a(p^e) = product (p^(e+k)-1)/(p^k-1), k=1..8.
Dirichlet g.f. product_{k=0..Q-1} zeta(s-k). - R. J. Mathar, Apr 01 2011
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CROSSREFS
| Cf. A001001.
Sequence in context: A075948 A011559 A160953 * A068025 A075943 A075944
Adjacent sequences: A038993 A038994 A038995 * A038997 A038998 A038999
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KEYWORD
| nonn,mult
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Offset changed to 1. - R. J. Mathar, Apr 01 2011
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