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A165291 Complement of A165289. 0
2, 4, 5, 6, 7, 10, 11, 13, 14, 16, 20, 21, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 39, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 58, 59, 60, 61, 62, 63, 66, 67, 69, 70, 72, 74, 75, 76, 77, 78, 81, 82, 83, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 99, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Numbers which are impossible values for the difference of a square minus the nearest smaller or equal cube.

LINKS

Table of n, a(n) for n=1..71.

MATHEMATICA

lst={}; Do[a=(x=n^2)-(y=Floor[(n^2)^(1/3)]^3); If[a<=416, AppendTo[lst, a]], {n, 8!}]; Take[Union@lst, 100]; lst1={}; Do[AppendTo[lst1, n], {n, 416}]; lst1; Complement[lst1, lst]

CROSSREFS

Cf. A165288, A165289, A165290

Sequence in context: A217445 A007238 A083875 * A080762 A047570 A129132

Adjacent sequences:  A165288 A165289 A165290 * A165292 A165293 A165294

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Sep 13 2009

EXTENSIONS

Definition simplified - R. J. Mathar, Sep 21 2009

STATUS

approved

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Last modified May 28 21:37 EDT 2020. Contains 334690 sequences. (Running on oeis4.)