Decimal part of cube root of a(n) starts with 3: first term of runs.

Terms

a(0) =13a(1) =36a(2) =80a(3) =149a(4) =251a(5) =390a(6) =572a(7) =805a(8) =1093a(9) =1443a(10) =1861a(11) =2353a(12) =2925a(13) =3582a(14) =4331a(15) =5178a(16) =6129a(17) =7190a(18) =8366a(19) =9664a(20) =11090a(21) =12650a(22) =14349a(23) =16195a(24) =18192a(25) =20347a(26) =22666a(27) =25154a(28) =27819a(29) =30665