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A332926
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2*a(n) are the perimeters of distinct triangles with integer sides i <= j <= k, whose area equals 6 times their perimeter. Terms occurring more than once belong to different triangles.
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2
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63, 64, 65, 68, 70, 70, 72, 77, 77, 80, 81, 82, 84, 85, 88, 90, 91, 93, 95, 99, 105, 108, 110, 112, 112, 115, 117, 125, 126, 126, 128, 135, 136, 140, 143, 145, 152, 152, 153, 154, 160, 165, 168, 174, 180, 182, 182, 187, 198, 203, 203, 203, 205, 205, 208, 217
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OFFSET
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1,1
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COMMENTS
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There are A007237(6) = 139 integer-sided triangles with 6*area = perimeter, with terms 70, 77, 112, 126, 152, 182, 205, 260, 513, and 798 corresponding to pairs, and terms 203 to triples of such triangles with different sides.
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LINKS
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CROSSREFS
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The terms of A332879, divided by 12, are all terms of this sequence, but omitting distinct triangles with identical perimeters.
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KEYWORD
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nonn,fini,full
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AUTHOR
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STATUS
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approved
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