a(n) = floor(log(n)^n).

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =10a(5) =33a(6) =105a(7) =349a(8) =1193a(9) =4189a(10) =15070a(11) =55426a(12) =207981a(13) =794847a(14) =3089232a(15) =12194590a(16) =48836860a(17) =198228772a(18) =814795476a(19) =3388909439a(20) =14252884342a(21) =60577219672a(22) =260038762861