A000821 - OEIS

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A000821

Number of switching networks under action of AG_n(Z_2).
(Formerly M5253 N2285)

36, 330, 22060, 920737780, 247617673784972437216, 4865376593267541575898325655326600134256578720 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`See Harrison reference for precise definition.` `Next term has 100 digits. [Sean A. Irvine, Jan 20, 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	`Index entries for sequences related to switching networks`
	CROSSREFS	`Sequence in context: A067473 A068075 A053136 * A203282 A071232 A135828` `Adjacent sequences: A000818 A000819 A000820 * A000822 A000823 A000824`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Jan 19 2012`

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Last modified February 16 13:30 EST 2012. Contains 205909 sequences.