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A035496
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Numbers of the form x*y^2 + y*z^2 + z*x^2, x,y,z >= 1.
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0
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3, 7, 13, 14, 21, 23, 24, 25, 31, 34, 38, 39, 40, 43, 47, 55, 56, 57, 59, 61, 62, 73, 78, 79, 80, 81, 82, 84, 89, 91, 93, 98, 104, 107, 109, 111, 112, 113, 115, 119, 121, 123, 133, 134, 136, 138, 139, 140, 142, 146, 147, 148, 150, 152, 155, 157, 163, 165, 166, 167
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..60.
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MATHEMATICA
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Select[ Union[ Flatten[ Table[ x^2y+y^2z+z^2x, {x, 1, 13}, {y, 1, 13}, {z, 1, 13} ] ] ], #<14^2+14+1& ]
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CROSSREFS
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Sequence in context: A290642 A295009 A310251 * A310252 A056530 A310253
Adjacent sequences: A035493 A035494 A035495 * A035497 A035498 A035499
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane.
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EXTENSIONS
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More terms from Erich Friedman
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STATUS
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approved
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