A186147 - OEIS

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A186147

Rank of n^3 when {i^2: i>=1} and {j^3: j>=1} are jointly ranked with i^2 after j^3 when i^2=j^3. Complement of A135674.

1, 4, 8, 11, 16, 20, 25, 30, 35, 41, 47, 53, 59, 66, 73, 79, 87, 94, 101, 109, 117, 125, 133, 141, 149, 158, 167, 176, 185, 194, 203, 213, 222, 232, 242, 251, 262, 272, 282, 292, 303, 314, 324, 335, 346, 357, 369, 380, 391, 403, 415, 426, 438, 450, 462, 475, 487, 499, 512, 524, 537, 550, 563, 575, 589, 602, 615, 628, 642, 655, 669, 682, 696, 710, 724, 738, 752, 766, 781, 795, 809, 824, 839, 853, 868, 883, 898, 913 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`See A186145.`
	LINKS	`Table of n, a(n) for n=1..88.`
	FORMULA	`b(n):=n+floor((n^3-1/2)^(1/2)), as in the Mathematica program.`
	MATHEMATICA	`d=-1/2;` `a[n_]:=n+Floor[(n^2-d)^(1/3)]; (* rank of n^2 )` `b[n_]:=n+Floor[(n^3+d)^(1/2)]; ( rank of n^3-1/2 )` `Table[a[n], {n, 1, 100}] ( A135674 )` `Table[b[n], {n, 1, 100}] ( A186147 *)`
	CROSSREFS	`Cf A186145.` `Sequence in context: A186926 A054736 A024626 * A023491 A131872 A104655` `Adjacent sequences: A186144 A186145 A186146 * A186148 A186149 A186150`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling, Feb 13 2011`
	STATUS	`approved`

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Last modified May 19 12:19 EDT 2013. Contains 225429 sequences.