First differences of cubefree taxi-cab numbers.

Terms

a(0) =18954a(1) =19350a(2) =109356a(3) =46452a(4) =131922a(5) =116126a(6) =240130a(7) =20958a(8) =1140672a(9) =202742a(10) =369880a(11) =273180a(12) =550746a(13) =132804a(14) =967913a(15) =588187a(16) =387576a(17) =453726a(18) =26936a(19) =259408a(20) =1561914a(21) =1251826a(22) =571274a(23) =1259022a(24) =62820a(25) =2858310a(26) =2763276a(27) =389298a(28) =207367a(29) =61713