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 A307150 #15 Mar 07 2020 12:33:58 %S A307150 6,3,2,24,30,1,42,12,54,15,66,8,78,21,10,96,102,27,114,120,14,33,138, %T A307150 4,150,39,18,168,174,5,186,48,22,51,210,216,222,57,26,60,246,7,258, %U A307150 264,270,69,282,32,294,75,34,312,318,9,330,84,38,87,354,40,366,93 %N A307150 Row 6 of array in A059897. %C A307150 From _Peter Munn_, Apr 02 2019: (Start) %C A307150 Also column 6 of A059897. %C A307150 A self-inverse permutation of the positive integers with no fixed points; A073675 composed with A120229. %C A307150 The permutation swaps pairs of integers whose ratio is 1:6 or 2:3, these ratios corresponding to the factorizations 1*6 = 2*3 = 6. Row 6 is the first row of A059897 to exhibit more than 1 such ratio. %C A307150 (End) %C A307150 The integers in the pairs with ratio 1:6 are listed in A036668, the integers in the pairs with ratio 2:3 are listed in A325424. - _Peter Munn_, Mar 05 2020 %H A307150 Alois P. Heinz, <a href="/A307150/b307150.txt">Table of n, a(n) for n = 1..10000</a> %H A307150 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A307150 From _Peter Munn_, Apr 02 2019: (Start) %F A307150 a(n) = A059897(6,n) = A059897(n,6). %F A307150 a(n) = A073675(A120229(n)) = A120229(A073675(n)) = A073675(n) * A120229(n) / n. %F A307150 (End) %Y A307150 Cf. A036668, A059897, A073675, A120229, A325424. %K A307150 nonn %O A307150 1,1 %A A307150 _N. J. A. Sloane_, Mar 29 2019 %E A307150 More terms from _Alois P. Heinz_, Mar 31 2019