id:A137342 - OEIS Search Results

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Number of rational series having complexity n over the finite field F_2 in two non-commuting variables.

+0
2

1, 4, 240, 52032, 37961472, 95557604352, 873176389545984, 30234012628981334016, 4073184753921806027390976, 2164965110784257951109280432128, 4571419424684923104187906920444592128 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`R. Bacher, The special subgroup of invertible non-commutative rational power series as a metric group, arXiv:0804.1092`
	LINKS	`Roland Bacher (Roland.Bacher(AT)ujf-grenoble.fr), Apr 08 2008, Table of n, a(n) for n = 0..14`
	FORMULA	`The reference contains a somewhat complicated formula.`
	CROSSREFS	`Adjacent sequences: A137339 A137340 A137341 this_sequence A137343 A137344 A137345` `Sequence in context: A013953 A051753 A094073 this_sequence A042769 A091792 A090602`
	KEYWORD	`nonn`
	AUTHOR	`Roland Bacher (Roland.Bacher(AT)ujf-grenoble.fr), Apr 08 2008`

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.

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