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Search: id:A123291
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| A123291 |
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Numbers that are sum of a square and a nonnegative cube (with repetition). |
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+0
2
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| 0, 1, 1, 2, 4, 5, 8, 9, 9, 10, 12, 16, 17, 17, 24, 25, 26, 27, 28, 31, 33, 36, 36, 37, 43, 44, 49, 50, 52, 57, 63, 64, 64, 65, 65, 68, 72, 73, 76, 80, 81, 82, 89, 89, 91, 100, 100, 101, 108, 108, 113, 121, 122, 125, 126, 127, 128, 129, 129, 134, 141, 144, 145, 145, 148
(list; graph; listen)
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OFFSET
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1,4
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COMMENT
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Cf. A022549 Sum of a square and a nonnegative cube (without repetition), A022550 Numbers that are not the sum of a square and a nonnegative cube.
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EXAMPLE
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Each of 1, 9, 17, 36 appear two times because
1=0^2+1^3=1^2+0^3, 9=1^2+2^3=3^2+0^3, 17=3^2+2^3==4^2+1^3, 36=3^2+3^3==6^2+0^3;
225 appears three times because 225=3^2+6^3=10^2+5^3=15^2+0^3;
1025 appears four times because 1025=5^2+10^3=30^2+5^3=31^2+4^3=32^2+1^3, etc.
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CROSSREFS
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Cf. A022549, A022550.
Sequence in context: A085624 A061884 A029935 this_sequence A099402 A117070 A130048
Adjacent sequences: A123288 A123289 A123290 this_sequence A123292 A123293 A123294
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Oct 11 2006
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