A133884 - OEIS

This site is supported by donations to The OEIS Foundation.

A133884

Binomial(n+4,n) mod 4.

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; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`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, A038509, A133634-A133636.` `Cf. A133874, A133880, A133890, A133900, A133910.` `Sequence in context: A202691 A064983 A124933 * A065775 A096837 A139092` `Adjacent sequences: A133881 A133882 A133883 * A133885 A133886 A133887`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Oct 10 2007`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 20:59 EST 2012. Contains 205968 sequences.