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 A374797 #12 Jul 22 2024 14:23:07 %S A374797 1,2,3,4,6,5,10,12,7,15,8,14,20,9,21,18,24,28,30,11,35,22,36,40,42,13, %T A374797 33,45,26,44,56,39,55,63,16,52,60,66,70,72,17,65,77,34,48,78,84,88,90, %U A374797 19,51,91,99,38,68,80,104,110,57,85,105,117,76,102,112,120 %N A374797 Distinct value of A003990 (LCM table read by antidiagonals) in order of appearance. %C A374797 This sequence is a permutation of the positive integers with inverse A374798 and similar to A257471. %H A374797 Rémy Sigrist, <a href="/A374797/b374797.txt">Table of n, a(n) for n = 1..10000</a> %H A374797 Rémy Sigrist, <a href="/A374797/a374797.gp.txt">PARI program</a> %H A374797 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A374797 The first terms of A003990 are: 1, 2, 2, 3, 2, 3, 4, 6, 6, 4, 5, 4, 3, 4, 5, 6, 10. Removing duplicates yields 1, 2, 3, 4, 6, 5, 10. %o A374797 (PARI) \\ See Links section. %Y A374797 Cf. A003990, A257471 (analog for multiplication table), A374798 (inverse). %K A374797 nonn,look %O A374797 1,2 %A A374797 _Rémy Sigrist_, Jul 20 2024