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Product of the largest prime divisors of composite numbers between successive primes.
2

%I #9 Sep 02 2020 17:29:20

%S 1,2,3,30,3,70,3,385,4095,5,7854,1235,7,1265,23205,127281,5,62062,

%T 2737,3,502645,615,1632323,124158255,385,17,4823,3,2849,

%U 24662087802577225,1118,1190255,23,499504581303,5,1431859,1444515,37433,1263899,11725483

%N Product of the largest prime divisors of composite numbers between successive primes.

%H Harvey P. Dale, <a href="/A076977/b076977.txt">Table of n, a(n) for n = 1..1000</a>

%t 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 Cf. A076976.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Oct 23 2002

%E More terms from _Sascha Kurz_, Jan 22 2003