Total number of 2 X 2 squares appearing in the Thue-Morse sequence logical matrices after n stages.

A241683

Total number of 2 X 2 squares appearing in the Thue-Morse sequence logical matrices after n stages.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =2a(4) =12a(5) =50a(6) =220a(7) =882a(8) =3612a(9) =14450a(10) =58140a(11) =232562a(12) =931612a(13) =3726450a(14) =14911260a(15) =59645042a(16) =238602012a(17) =954408050a(18) =3817719580a(19) =15270878322a(20) =61083862812a(21) =244335451250a(22) =977343203100

External references