Possible differences between adjacent palindromes.

Terms

a(0) =1a(1) =2a(2) =10a(3) =11a(4) =100a(5) =110a(6) =1000a(7) =1100a(8) =10000a(9) =11000a(10) =100000a(11) =110000a(12) =1000000a(13) =1100000a(14) =10000000a(15) =11000000a(16) =100000000a(17) =110000000a(18) =1000000000a(19) =1100000000a(20) =10000000000a(21) =11000000000a(22) =100000000000a(23) =110000000000a(24) =1000000000000