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Search: id:A038997
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| A038997 |
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Sublattices of index n in generic 10-dimensional lattice. |
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+0
3
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| 1, 1023, 29524, 698027, 2441406, 30203052, 47079208, 408345795, 653757313, 2497558338, 2593742460, 20608549148, 11488207654, 48162029784, 72080070744, 222984027123, 125999618778, 668793731199
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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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
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Index entries for sequences related to sublattices
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FORMULA
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f(Q, n)=Sum d*f(Q-1, d), d|n; here Q=10.
Multiplicative with a(p^e) = product (p^(e+k)-1)/(p^k-1), k=1..9
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CROSSREFS
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Cf. A001001.
Sequence in context: A158421 A023060 A011560 this_sequence A068026 A075946 A075951
Adjacent sequences: A038994 A038995 A038996 this_sequence A038998 A038999 A039000
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KEYWORD
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nonn,mult
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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