id:A135039 - OEIS Search Results

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a(n)=ceiling[area of a circle of radius n].

+0
3

4, 13, 29, 51, 79, 114, 154, 202, 255, 315, 381, 453, 531, 616, 707, 805, 908, 1018, 1135, 1257, 1386, 1521, 1662, 1810, 1964, 2124, 2291, 2464, 2643, 2828, 3020, 3217, 3422, 3632, 3849, 4072, 4301, 4537, 4779, 5027, 5282, 5542, 5809, 6083, 6362, 6648 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=ceiling[pi*n^2]`
	CROSSREFS	`Cf. A066643.` `Adjacent sequences: A135036 A135037 A135038 this_sequence A135040 A135041 A135042` `Sequence in context: A087035 A112560 A009561 this_sequence A015634 A041301 A138989`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (azarian(AT)evansville.edu), Feb 29 2008`

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Last modified January 8 02:43 EST 2009. Contains 152824 sequences.

AT&T Labs Research