Numbers with a record number of divisors whose binary expansion is palindromic.

Terms

a(0) =1a(1) =3a(2) =9a(3) =15a(4) =45a(5) =135a(6) =189a(7) =315a(8) =495a(9) =765a(10) =2079a(11) =3465a(12) =4095a(13) =8415a(14) =12285a(15) =45045a(16) =69615a(17) =135135a(18) =405405a(19) =528255a(20) =675675a(21) =765765a(22) =2297295a(23) =5810805a(24) =11486475a(25) =17432415a(26) =29054025a(27) =32927895a(28) =43648605a(29) =50331645