id:A134934 - OEIS Search Results

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a(n) = (14*n+1)^2.

+0
1

1, 225, 841, 1849, 3249, 5041, 7225, 9801, 12769, 16129, 19881, 24025, 28561, 33489, 38809, 44521, 50625, 57121, 64009, 71289, 78961, 87025, 95481, 104329, 113569, 123201, 133225, 143641, 154449, 165649, 177241, 189225, 201601, 214369, 227529, 241081 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Number of rats in population after n years, starting with one rat at year 0 (see A016754 for more details).`
	FORMULA	`O.g.f.: -(1+222x+169x^2)/(-1+x)^3 = -169/(-1+x)-560/(-1+x)^2-392/(-1+x)^3 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 31 2008`
	CROSSREFS	`a(n) = A016754(7*n).` `Sequence in context: A147276 A117246 A027470 this_sequence A091078 A060861 A076395` `Adjacent sequences: A134931 A134932 A134933 this_sequence A134935 A134936 A134937`
	KEYWORD	`nonn`
	AUTHOR	`Hans Isdahl (hansi(AT)nordtroms.net), Jan 26 2008`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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