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A078186 Number of n X n matrices over an alphabet of size 16. 2
1, 16, 65536, 68719476736, 18446744073709551616, 1267650600228229401496703205376, 22300745198530623141535718272648361505980416, 100433627766186892221372630771322662657637687111424552206336 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

a(n) = k^(n^2) with k = 2, 3, 4,... counts n X n matrices over an alphabet of size k.

Also number of elements in de Bruijn tori (2n X 2n). - Charles R Greathouse IV, Nov 19 2013

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..25

FORMULA

a(n) = 16^(n^2).

MATHEMATICA

Table[16^(n^2), {n, 7}]

PROG

(MAGMA) [16^(n^2): n in [0..10]]; // Vincenzo Librandi, Jun 05 2011

(PARI) a(n)=16^n^2 \\ Charles R Greathouse IV, Jan 23 2012

CROSSREFS

Cf. A078185.

Sequence in context: A087586 A105312 A013758 * A217026 A087926 A193135

Adjacent sequences:  A078183 A078184 A078185 * A078187 A078188 A078189

KEYWORD

nonn,easy

AUTHOR

Vincenzo Origlio (vincenzo.origlio(AT)itc.cnr.it), Nov 21 2002

STATUS

approved

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Last modified April 3 01:39 EDT 2020. Contains 333195 sequences. (Running on oeis4.)