Let S denote the palindromes in the language {0,1}*; a(n) = number of words of length n in the language SS.

A007055

Let S denote the palindromes in the language {0,1}*; a(n) = number of words of length n in the language SS.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =52a(7) =100a(8) =160a(9) =260a(10) =424a(11) =684a(12) =1036a(13) =1640a(14) =2552a(15) =3728a(16) =5920a(17) =8672a(18) =13408a(19) =19420a(20) =30136a(21) =42736a(22) =66840a(23) =94164a(24) =145900a(25) =204632a(26) =317776a(27) =441764a(28) =685232a(29) =950216

External references