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Search: id:A078360
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A078360 Numbers having a unique representation as sum of a positive square and a positive cube. +0
3
2, 5, 9, 10, 12, 24, 26, 28, 31, 33, 36, 37, 43, 44, 50, 52, 57, 63, 68, 72, 73, 76, 80, 82, 91, 100, 101, 113, 122, 126, 127, 128, 134, 141, 148, 150, 152, 161, 164, 170, 171, 174, 177, 185, 189, 196, 197, 204, 206, 208, 217, 220, 223, 226, 232, 241, 246, 257 (list; graph; listen)
OFFSET

1,1

COMMENT

A078359(a(n))=1.

EXAMPLE

10 is a term, as 10 = 3^2 + 1^3 and all other sums of positive squares and positives cubes are not equal 10; 17 is not a term, as 17 = 3^2 + 2^3 = 4^2 + 1^3.

CROSSREFS

Cf. A055394, A054402.

Sequence in context: A100530 A155469 A055394 this_sequence A114995 A047619 A046711

Adjacent sequences: A078357 A078358 A078359 this_sequence A078361 A078362 A078363

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 25 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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