Decimal representation of the binary number formed by the concatenation of digits which are the same in both the left and right binary concatenations of the integers 1 to n.

A175909

Decimal representation of the binary number formed by the concatenation of digits which are the same in both the left and right binary concatenations of the integers 1 to n.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =46a(4) =29a(5) =219a(6) =495a(7) =1502a(8) =368357a(9) =27603a(10) =120539a(11) =1797358a(12) =462906349a(13) =32361431a(14) =33008607a(15) =12857291758a(16) =5972138981a(17) =750631865a(18) =99509722923a(19) =13841055262

External references