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A053293 Number of nonsingular n X n matrices over GF(7). +0
10
1, 6, 2016, 33784128, 27811094169600, 1122211189922928537600, 2218959336124989671614429593600, 214992513152176999576908105619651923148800 (list; graph; listen)
OFFSET

0,2

LINKS

J. Overbey, W. Traves and J. Wojdylo, On the Keyspace of the Hill Cipher

FORMULA

(7^n - 1)(7^n - 7)...(7^n - 7^(n-1))

CROSSREFS

Cf. A002884, A053290-A053292.

Cf. A003790.

Sequence in context: A034841 A024086 A094036 this_sequence A004817 A089535 A059081

Adjacent sequences: A053290 A053291 A053292 this_sequence A053294 A053295 A053296

KEYWORD

nonn,easy

AUTHOR

Stephen G. Penrice (spenrice(AT)ets.org), Mar 04 2000

EXTENSIONS

More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 16 2000

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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