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 A076977 #9 Sep 02 2020 17:29:20 %S A076977 1,2,3,30,3,70,3,385,4095,5,7854,1235,7,1265,23205,127281,5,62062, %T A076977 2737,3,502645,615,1632323,124158255,385,17,4823,3,2849, %U A076977 24662087802577225,1118,1190255,23,499504581303,5,1431859,1444515,37433,1263899,11725483 %N A076977 Product of the largest prime divisors of composite numbers between successive primes. %H A076977 Harvey P. Dale, <a href="/A076977/b076977.txt">Table of n, a(n) for n = 1..1000</a> %t A076977 plpd[l_]:=Times@@(FactorInteger[#][[-1,1]]&/@l); plpd/@(Range[#[[1]]+1, #[[2]]-1]&/@Partition[Prime[Range[50]],2,1]) (* _Harvey P. Dale_, Sep 02 2020 *) %Y A076977 Cf. A076976. %K A076977 nonn %O A076977 1,2 %A A076977 _Amarnath Murthy_, Oct 23 2002 %E A076977 More terms from _Sascha Kurz_, Jan 22 2003