id:A027436 - OEIS Search Results

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f(x) = Sum a(n)*x^n, n = 1..inf satisfies f(f(x)) = x*(1 + 4*x).

+0
6

1, 2, -4, 16, -80, 432, -2304, 10944, -35328, -74112, 2736384, -30853632, 238663680, -1247457280, 2201247744, 32530722816, -320650199040, 156266184704, 18314630348800, -20667999748096, -3428200020508672 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A058926 A102736 A103619 this_sequence A025225 A115125 A000831` `Adjacent sequences: A027433 A027434 A027435 this_sequence A027437 A027438 A027439`
	KEYWORD	`sign`
	AUTHOR	`ees1jd(AT)ee.surrey.ac.uk (Jonathan Deane)`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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