A098572 - OEIS

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A098572

a(n)=floor(sum(m^(1/m),m=1..n)).

1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	EXAMPLE	`floor(1^(1/1)+2^(1/2)+3^(1/3))=3 and floor(1^(1/1)+2^(1/2)+3^(1/3)+4^(1/4))=5.`
	MAPLE	`ans:=[]: a:=0: for n from 1 to 70 do: a:=a+evalf(n^(1/n), 50): ans:=[op(ans), floor(a)]: od: ans;`
	CROSSREFS	`Sequence in context: A045749 A187570 A045671 * A001955 A184480 A194375` `Adjacent sequences: A098569 A098570 A098571 * A098573 A098574 A098575`
	KEYWORD	`easy,nonn`
	AUTHOR	`Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 16 2004`

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.