Call any positive integer that is a palindrome when written in binary a "binary palindrome". a(n) = the smallest product (the n-th binary palindrome)*(any binary palindrome) that is not a binary palindrome.
A175241
Call any positive integer that is a palindrome when written in binary a "binary palindrome". a(n) = the smallest product (the n-th binary palindrome)*(any binary palindrome) that is not a binary palindrome.
Terms
- a(0) =81a(1) =25a(2) =35a(3) =81a(4) =75a(5) =289a(6) =105a(7) =81a(8) =155a(9) =1089a(10) =135a(11) =357a(12) =315a(13) =4225a(14) =657a(15) =425a(16) =279a(17) =1485a(18) =321a(19) =357a(20) =635a(21) =16641a(22) =459a(23) =825a(24) =567a(25) =5265a(26) =657a(27) =1155a(28) =1275a(29) =66049
External references
- oeis: A175241