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%I #10 Jan 09 2019 21:21:59
%S 1,1,2,3,1,20,1,21,2,1,1,3960,1,13,2,21,1,340,1,57,2,1,1,1275120,1,1,
%T 2,39,1,2900,1,651,2,1,1,201960,1,37,2,399,1,10660,1,129,2,1,1,
%U 119861280,1,1,2,3,1,18020,1,1911,2,1,1,643678200,1,61,2,651,1,20,1,201,2,13,1,4617209520,1,73,2,111,1,20,1,31521,2,1,1,175186440,1,1,2,903,1
%N a(n) = Product_{d|n, d-1 is prime} (d-1)^(1+A286561(n,d-1)), where A286561(n,k) gives the k-valuation of n (for k > 1).
%H Antti Karttunen, <a href="/A323155/b323155.txt">Table of n, a(n) for n = 1..16384</a>
%F a(n) = Product_{d|n, d>2} [(d-1)^(1+A286561(n,d-1))]^A010051(d-1).
%o (PARI) A323155(n) = { my(m=1); fordiv(n, d, if(isprime(d-1), m *= (d-1)^(1+valuation(n,d-1)))); (m); }; \\ _Antti Karttunen_, Jan 09 2019
%Y Cf. A010051, A286561, A323156, A323157.
%Y Cf. also A185633.
%K nonn
%O 1,3
%A _Antti Karttunen_, Jan 09 2019