a(n) = 100*log_10(n) rounded to the nearest integer.

Terms

a(0) =0a(1) =30a(2) =48a(3) =60a(4) =70a(5) =78a(6) =85a(7) =90a(8) =95a(9) =100a(10) =104a(11) =108a(12) =111a(13) =115a(14) =118a(15) =120a(16) =123a(17) =126a(18) =128a(19) =130a(20) =132a(21) =134a(22) =136a(23) =138a(24) =140a(25) =141a(26) =143a(27) =145a(28) =146a(29) =148