Indices where A354169 is the sum of two consecutive powers of 2.

Terms

a(0) =5a(1) =9a(2) =25a(3) =37a(4) =49a(5) =67a(6) =73a(7) =91a(8) =97a(9) =145a(10) =193a(11) =289a(12) =385a(13) =577a(14) =769a(15) =1153a(16) =1537a(17) =2305a(18) =3073a(19) =4609a(20) =6145a(21) =9217a(22) =12289a(23) =18433a(24) =24577a(25) =36865a(26) =49153a(27) =73729a(28) =98305a(29) =147457