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 A075847 Difference between n^2 and the largest cube <= n^2. 12
 0, 0, 3, 1, 8, 17, 9, 22, 0, 17, 36, 57, 19, 44, 71, 9, 40, 73, 108, 18, 57, 98, 141, 17, 64, 113, 164, 0, 55, 112, 171, 232, 24, 89, 156, 225, 296, 38, 113, 190, 269, 350, 36, 121, 208, 297, 388, 12, 107, 204, 303, 404, 507, 65, 172, 281, 392, 505, 620, 106, 225, 346 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS a(n) = n^2 - A077106(n). a(n) = 0 iff n = m^(6*k). a(n) = 0 when n is a cube. See A070923. LINKS Zak Seidov, Table of n, a(n) for n = 0..2000 EXAMPLE a(4)=8 because 4^2 - 2^3 = 8; a(9)=17 because 9^2 - 4^3 = 17. A077106(20) = 343 = 7^3 is the largest cube <= 20^2 = 400, therefore a(20) = 400 - 343 = 57. MATHEMATICA Table[a = n^2; a - Floor[a^(1/3)]^3, {n, 0, 300}] (* Vladimir Joseph Stephan Orlovsky, Jun 03 2011 *) CROSSREFS Cf. A000290, A077109, A077110, A077111, A077116. Cf. A070923. Sequence in context: A049965 A221736 A077108 * A193602 A221125 A049967 Adjacent sequences:  A075844 A075845 A075846 * A075848 A075849 A075850 KEYWORD easy,nonn AUTHOR Zak Seidov and Reinhard Zumkeller, Oct 15 2002 EXTENSIONS Edited by N. J. A. Sloane at the suggestion of Zak Seidov, Oct 30 2008 STATUS approved

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Last modified August 20 10:05 EDT 2019. Contains 326149 sequences. (Running on oeis4.)