id:A074732 - OEIS Search Results

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a(n+3) = floor [ ( a(n) + 2*a(n+1) + 3*a(n+2) )/4 ], with a(0), a(1), a(2) equal to 0, 1, 2.

+0
2

0, 1, 2, 2, 2, 3, 3, 4, 5, 6, 8, 10, 13, 16, 21, 27, 34, 44, 56, 72, 93, 119, 153, 197, 254, 327, 421, 542, 698, 899, 1158, 1492, 1922, 2477, 3191, 4112, 5298, 6827, 8797, 11335, 14606 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Ratio of each term to the previous approaches 1.28858..., a root of -4x^3 + 3x^2 + 2*x + 1.`
	EXAMPLE	`a(4) = 2 because ( 1 + 22 + 32 )/4 = 2.75 and 2.75 floored = 2`
	CROSSREFS	`Cf. A074733.` `Sequence in context: A136421 A016085 A018122 this_sequence A089046 A054911 A137267` `Adjacent sequences: A074729 A074730 A074731 this_sequence A074733 A074734 A074735`
	KEYWORD	`easy,nonn`
	AUTHOR	`Axel Harvey (ax(AT)hirsig.ca), Sep 05 2002`

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

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