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 A081957 #25 May 16 2021 05:51:48 %S A081957 2,6,8,24,30,36,120,144,168,180,720,840,960,1008,1080,5040,5760,6480, %T A081957 6720,7200,7560,40320,45360,50400,51840,55440,57600,60480,362880, %U A081957 403200,443520,453600,483840,498960,518400,524160,3628800,3991680,4354560,4435200,4717440,4838400,4989600,5080320,5241600 %N A081957 Triangle whose n-th row contains the n smallest numbers that are products of n distinct integers > 1, read by rows. %H A081957 James Rayman, <a href="/A081957/b081957.txt">Rows n = 1..100, flattened</a> %H A081957 James Rayman, <a href="/A081957/a081957.py.txt">Python program</a> %e A081957 Triangle begins: %e A081957 2; %e A081957 6, 8; %e A081957 24, 30, 36; %e A081957 120, 144, 168, 180; %e A081957 ... %o A081957 (Python) # See Rayman link. %Y A081957 Cf. A081958, A081959, A081960. %K A081957 nonn,tabl %O A081957 1,1 %A A081957 _Amarnath Murthy_, Apr 02 2003 %E A081957 Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 08 2003 %E A081957 Terms a(39) and beyond from _James Rayman_, Jan 17 2021 %E A081957 Name edited by _Michel Marcus_, Jan 18 2021