Numbers k such that m = 2*k is the middle side in a Heronian triangle with sides m - 11, m, m + 11.

Terms

a(0) =13a(1) =14a(2) =22a(3) =38a(4) =43a(5) =77a(6) =139a(7) =158a(8) =286a(9) =518a(10) =589a(11) =1067a(12) =1933a(13) =2198a(14) =3982a(15) =7214a(16) =8203a(17) =14861a(18) =26923a(19) =30614a(20) =55462a(21) =100478a(22) =114253a(23) =206987a(24) =374989a(25) =426398a(26) =772486a(27) =1399478a(28) =1591339a(29) =2882957