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A092282 Difference between largest square number and largest cube number less than n. +0
1
0, 0, 0, 3, 3, 3, 3, -4, 1, 1, 1, 1, 1, 1, 1, 8, 8, 8, 8, 8, 8, 8, 8, 8, 17, 17, -2, -2, -2, -2, -2, -2, -2, -2, -2, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 37, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 36 (list; graph; listen)
OFFSET

1,4

FORMULA

a(n) = floor(i^(1/2))^2 - floor(i^(1/3))^3

EXAMPLE

n = 10; largest square = 3^2 = 9; largest cube = 2^3 = 8; a(10) = 9 - 8 = 1;

CROSSREFS

Sequence in context: A158805 A163469 A105121 this_sequence A048181 A091799 A035936

Adjacent sequences: A092279 A092280 A092281 this_sequence A092283 A092284 A092285

KEYWORD

easy,sign

AUTHOR

Felix Tubiana (fat2(AT)columbia.edu), Jan 27 2004

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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