A000817 - OEIS

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A000817

Number of switching networks under action of GL_n(Z_2).
(Formerly M5003 N2153)

16, 80, 1056, 320416, 1858620869536, 16880173675357998942609488800, 706695723125809149019144715477884710572926078237246360174451424 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`See Harrison reference for precise definition.` `Next term has 136 digits. [Sean A. Irvine, Jan 19, 2012]`
	REFERENCES	`M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327.` `N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).` `N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	LINKS	`Table of n, a(n) for n=1..7.` `Index entries for sequences related to switching networks`
	CROSSREFS	`Sequence in context: A165963 A221910 A069840 * A192510 A119508 A088379` `Adjacent sequences: A000814 A000815 A000816 * A000818 A000819 A000820`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane.`
	EXTENSIONS	`More terms from Sean A. Irvine, Jan 18 2012`
	STATUS	`approved`

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Last modified June 19 14:40 EDT 2013. Contains 226414 sequences.