Palindromes having more divisors than all smaller palindromes.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =44a(5) =66a(6) =252a(7) =2112a(8) =2772a(9) =6336a(10) =27972a(11) =48384a(12) =219912a(13) =252252a(14) =696696a(15) =828828a(16) =2114112a(17) =4228224a(18) =21333312a(19) =42666624a(20) =63999936a(21) =234666432a(22) =2154664512a(23) =2329559232a(24) =4815995184a(25) =8402442048a(26) =21354645312a(27) =40362626304a(28) =63708380736a(29) =211887788112