7th column of the array A172119.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =127a(8) =252a(9) =500a(10) =992a(11) =1968a(12) =3904a(13) =7744a(14) =15361a(15) =30470a(16) =60440a(17) =119888a(18) =237808a(19) =471712a(20) =935680a(21) =1855999a(22) =3681528a(23) =7302616a(24) =14485344a(25) =28732880a(26) =56994048a(27) =113052416a(28) =224248833a(29) =444816138