A121909 - OEIS

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A121909

S-D transform of factorial numbers A000142.

1, 2, 3, 10, 29, 162, 799 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n)=Sum{k, 0<=k<=n}A051159(n,k)*A000142(k).`
	EXAMPLE	`Row 1 : 1, 1, 2, 6, 24, 120, ...(A000142)` `Row 2 : 1+1=2, 2-1=1, 6+2=8, 24-6=18, 120+24=144, ...` `Row 3 : 1+2=3, 9-1=7, 18+8=26, 144-18=126, ...` `Row 4 : 7+3=10, 26-7=19, 126+26=152, ...` `Row 5 : 19+10=29, 152-19=133, ...` `Row 6 : 133+29=162, ...` `First term of each row form this sequence.`
	CROSSREFS	`Sequence in context: A004980 A034324 A084380 * A153909 A131764 A066706` `Adjacent sequences: A121906 A121907 A121908 * A121910 A121911 A121912`
	KEYWORD	`nonn`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 01 2006`

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Last modified February 16 14:37 EST 2012. Contains 205930 sequences.