Starts of runs of 3 consecutive tribonacci-Niven numbers (A352089).

Terms

a(0) =6a(1) =12a(2) =26a(3) =80a(4) =184a(5) =506a(6) =664a(7) =1602a(8) =1603a(9) =1704a(10) =3409a(11) =6034a(12) =9830a(13) =15723a(14) =16744a(15) =19088a(16) =21230a(17) =21664a(18) =22834a(19) =33544a(20) =39424a(21) =40662a(22) =40730a(23) =51190a(24) =55744a(25) =56224a(26) =60710a(27) =61264a(28) =63734a(29) =66014