A164514 - OEIS

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A164514

1 followed by numbers that are not squares.

1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Complement of A000290 for n >= 1.`
	FORMULA	`{1} Union A000037.` `a(n) = A000037(n-1) = n-1+floor(1/2 + sqrt(n - 1)) = n-1 + floor( sqrt(n-1 + floor( sqrt(n - 1) ))) for n > 1.`
	CROSSREFS	`Sequence in context: A171519 A072099 A046841 * A000037 A028761 A028809` `Adjacent sequences: A164511 A164512 A164513 * A164515 A164516 A164517`
	KEYWORD	`nonn,less`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Aug 14 2009`
	EXTENSIONS	`Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 21 2009`

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Last modified February 17 11:35 EST 2012. Contains 206011 sequences.