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 A332926 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. 2
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 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. LINKS Hugo Pfoertner, Table of n, a(n) for n = 1..139 CROSSREFS The terms of A332879, divided by 12, are all terms of this sequence, but omitting distinct triangles with identical perimeters. Cf. A007237, A289155, A289156. Sequence in context: A125638 A365400 A365397 * A112816 A296875 A346803 Adjacent sequences: A332923 A332924 A332925 * A332927 A332928 A332929 KEYWORD nonn,fini,full AUTHOR Hugo Pfoertner, Mar 02 2020 STATUS approved

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Last modified October 2 08:18 EDT 2023. Contains 365831 sequences. (Running on oeis4.)