id:A114212 - OEIS Search Results

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Generalized Gould sequence.

+0
2

1, 2, 3, 4, 4, 4, 6, 8, 6, 4, 6, 8, 8, 8, 12, 16, 10, 4, 6, 8, 8, 8, 12, 16, 12, 8, 12, 16, 16, 16, 24, 32, 18, 4, 6, 8, 8, 8, 12, 16, 12, 8, 12, 16, 16, 16, 24, 32, 20, 8, 12, 16, 16, 16, 24, 32, 24, 16, 24, 32, 32, 32, 48, 64, 34, 4, 6, 8, 8, 8, 12, 16, 12, 8, 12, 16, 16, 16, 24, 32, 20, 8 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Row sums of A114213.`
	FORMULA	`a(n)=sum{k=0..n, mod(sum{j=0..n-k, C(k, j)C(n-k, j)(1+(-1)^k)/2}, 2)}; a(n)=A001316(n)+A001316((n-2)/2)(1+(-1)^n)/2.`
	CROSSREFS	`Sequence in context: A087875 A099777 A131798 this_sequence A108355 A057951 A076410` `Adjacent sequences: A114209 A114210 A114211 this_sequence A114213 A114214 A114215`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Nov 17 2005`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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