A092898 - OEIS

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A092898

Expansion of (1-4x+4x^2-4x^3)/(1-4x).

1, 0, 4, 12, 48, 192, 768, 3072, 12288, 49152, 196608, 786432, 3145728, 12582912, 50331648, 201326592, 805306368, 3221225472, 12884901888, 51539607552, 206158430208, 824633720832, 3298534883328, 13194139533312, 52776558133248 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`Partial sums are A092896. a(n+2)/4=A002001(n).`
	FORMULA	`a(n)=34^n/16+130^n/16+sum{k=0..n, binom(n, k)(-1)^k(3k/4+k(k-1)/2) }`
	CROSSREFS	`Sequence in context: A056632 A149385 * A110594 A151483 A192622 A111930` `Adjacent sequences: A092895 A092896 A092897 * A092899 A092900 A092901`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 12 2004`

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Last modified February 16 21:17 EST 2012. Contains 205971 sequences.