id:A133884 - OEIS Search Results

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Binomial(n+4,n) mod 4.

+0
6

1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3, 3, 1, 1, 0, 0, 0, 0, 1, 1, 3, 3, 2, 2, 2, 2, 3 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Periodic with length 4^2=16.`
	FORMULA	`a(n)=binomial(n+4,4) mod 4.` `G.f. g(x)=(1+x+3x^2+3x^3+2x^4+2x^5+2x^6+2x^7+3x^8+3x^9+x^10+x^11)/(1-x^16).` `Also: g(x)=(1+x^2)(1+2x^2+2x^6+x^8)/(1-x^16).` `Also: g(x)=(1+2x^2+2x^6+x^8)/((1-x^2)(1+x^4)(1+x^8)).`
	CROSSREFS	`Cf. A000040, A133620-A133625, A133630, A133633-A133636.` `Cf. A133874, A133880, A133890, A133900, A133910.` `Sequence in context: A131589 A064983 A124933 this_sequence A065775 A096837 A139092` `Adjacent sequences: A133881 A133882 A133883 this_sequence A133885 A133886 A133887`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Oct 10 2007`

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.

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