Positions of -4's in A346242.

Terms

a(0) =72a(1) =260a(2) =380a(3) =620a(4) =740a(5) =860a(6) =1220a(7) =1340a(8) =1460a(9) =1580a(10) =1940a(11) =2060a(12) =2180a(13) =2540a(14) =2780a(15) =3020a(16) =3140a(17) =3260a(18) =3620a(19) =3860a(20) =3980a(21) =4220a(22) =4460a(23) =4580a(24) =4820a(25) =5420a(26) =5540a(27) =5660a(28) =6140a(29) =6260