Fractional part of cube root of a(n) starts with digit 7.

Terms

a(0) =5a(1) =20a(2) =21a(3) =51a(4) =52a(5) =53a(6) =54a(7) =104a(8) =105a(9) =106a(10) =107a(11) =108a(12) =109a(13) =110a(14) =186a(15) =187a(16) =188a(17) =189a(18) =190a(19) =191a(20) =192a(21) =193a(22) =194a(23) =195a(24) =301a(25) =302a(26) =303a(27) =304a(28) =305a(29) =306