Numbers that cannot be expressed as k + floor(log(k)) where k is an integer.

Terms

a(0) =3a(1) =9a(2) =23a(3) =58a(4) =153a(5) =409a(6) =1103a(7) =2988a(8) =8112a(9) =22036a(10) =59885a(11) =162766a(12) =442426a(13) =1202618a(14) =3269032a(15) =8886126a(16) =24154969a(17) =65659987a(18) =178482319a(19) =485165215a(20) =1318815755a(21) =3584912868a(22) =9744803469a(23) =26489122153a(24) =72004899362a(25) =195729609454