Palindromes with exactly 9 prime factors (counted with multiplicity).

Terms

a(0) =4224a(1) =6336a(2) =21312a(3) =23232a(4) =27072a(5) =213312a(6) =276672a(7) =618816a(8) =2133312a(9) =2177712a(10) =2198912a(11) =2308032a(12) =2513152a(13) =2536352a(14) =2545452a(15) =2551552a(16) =2553552a(17) =2572752a(18) =2597952a(19) =2725272a(20) =2745472a(21) =2747472a(22) =2774772a(23) =2970792a(24) =2994992a(25) =4099904