id:A039722 - OEIS Search Results

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a[ 1 ]=1,a[ m+1 ]=2*sum{k=1 to floor((m+1)/2)}a[ k ].

+0
2

1, 2, 2, 6, 6, 10, 10, 22, 22, 34, 34, 54, 54, 74, 74, 118, 118, 162, 162, 230, 230, 298, 298, 406, 406, 514, 514, 662, 662, 810, 810, 1046, 1046, 1282, 1282, 1606, 1606 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	FORMULA	`a[ 1 ]=1, a[ 2 ]=2, a[ 2m+1 ]=a[ 2m ], a[ 2m+2 ]=a[ 2m+1 ]+2a[ m+1 ] {m is a positive integer.}`
	EXAMPLE	`a[ 6 ]=2(a[ 1 ]+a[ 2 ]+a[ 3 ])=2(1+2+2)=10`
	CROSSREFS	`Sequence in context: A010762 A055993 A151888 this_sequence A082542 A162776 A032302` `Adjacent sequences: A039719 A039720 A039721 this_sequence A039723 A039724 A039725`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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