id:A126156 - OEIS Search Results

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Column 0 and row sums of symmetric triangle A126155.

+0
5

1, 1, 7, 139, 5473, 357721, 34988647, 4784061619, 871335013633, 203906055033841, 59618325600871687, 21297483077038703899, 9127322584507530151393, 4621897483978366951337161, 2730069675607609356178641127 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=Sum_{k, 0<=k<=n}A087736(n,k)*3^(n-k). - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jul 17 2007`
	CROSSREFS	`Cf. A126155; diagonals: A126157, A126158.` `Sequence in context: A142295 A056254 A137463 this_sequence A082162 A085708 A054606` `Adjacent sequences: A126153 A126154 A126155 this_sequence A126157 A126158 A126159`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Dec 20 2006`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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