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%I #5 May 23 2022 17:45:40
%S 1,1,2,3,7,5,13,11,19,17,23,29,37,31,43,41,47,53,59,67,61,71,79,73,89,
%T 97,83,103,101,109,107,127,113,131,137,139,149,151,163,157,167,173,
%U 179,181,193,191,199,211,223,197,229,227,233,239,241,251,257,263,269,277,271,281,283,307,293,313,311,317,331,337
%N Inverse prime map of A354200.
%F For all n >= 1, a(A000720(A354200(n))) = A000040(n).
%o (PARI) A354201(n) = if(n<=3,(n+1)\2,my(m=prime(n)%4); forstep(i=n-1,0,-1,if(m==(prime(i)%4),return(prime(i)))));
%Y Cf. A000040, A000720, A354200, A354203.
%K nonn
%O 1,3
%A _Antti Karttunen_, May 23 2022