This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A056603 #8 Sep 04 2017 19:24:24 %S A056603 1,2,6,6,30,210,210,210,2310,30030,30030,510510,9699690,223092870, %T A056603 223092870,223092870,6469693230,200560490130,200560490130, %U A056603 7420738134810,304250263527210,13082761331670030,614889782588491410 %N A056603 Squarefree kernels of distinct values of lcm(1,...,m) (A051451). %e A056603 Only values of A002110 arise with repetitions, but the sequence is not identical to A034386. It is more compact than A034386, but still not a repetition-free primorial sequence. E.g., the values 1,2,6,30,210,2310,30030,... occurs in A034386 1,1,2,2,4,2,4,2,4,... times, while the same values arise here 1,1,2,1,3,1,2,1,1,... times. This sequence represents a transition between A034386 and the more compact A002110. %Y A056603 Cf. A002110, A003418, A034386, A051451. %K A056603 nonn %O A056603 1,2 %A A056603 _Labos Elemer_, Aug 07 2000