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Search: id:A092300
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| A092300 |
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2*5^(n^2+2n+1)*Product_{j=1..n} (25^j-1). |
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+0
7
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| 10, 30000, 58500000000, 71406562500000000000, 54478744277343750000000000000000, 25977486943588417053222656250000000000000000000, 7741894375438878098811060190200805664062500000000000000000000000, 14420402001907017313575659696928414632566273212432861328125000000000000000000000\ 00000
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OFFSET
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0,1
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COMMENT
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The order of the p-Clifford group for an odd prime p is a*p^(n^2+2n+1)*Product_{j=1..n} (p^(2*j)-1), where a = gcd(p+1,4).
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LINKS
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G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
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CROSSREFS
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Cf. A001309, A003956.
Cf. A092299 and A092301 (p=3), A092300 and A089989 (p=5), A090768 and A090769 (p=7), A090770 (p=2, although this is the wrong formula in that case).
Sequence in context: A151582 A052498 A055321 this_sequence A048916 A055310 A048832
Adjacent sequences: A092297 A092298 A092299 this_sequence A092301 A092302 A092303
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Feb 10 2004
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