A131869 - OEIS

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A131869

Series reversion of x(1-8x)/(1-x) .

1, 7, 105, 1967, 41265, 927479, 21838425 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`The Hankel transform of this sequence is 56^C(n+1,2) .`
	FORMULA	`a(n) = Sum_{k, 0<=k<=n}A086810(n,k)*7^k .`
	CROSSREFS	`Sequence in context: A139742 A120049 A067420 * A132867 A145666 A096131` `Adjacent sequences: A131866 A131867 A131868 * A131870 A131871 A131872`
	KEYWORD	`nonn`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Oct 29 2007`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.