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a(n) = A114537(n,n), the (n-1)-fold application of the prime function starting with the n-th nonprime.
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%I #17 Oct 15 2024 05:13:20

%S 1,7,41,331,3001,42043,919913,19734581,440817757,12501968177,

%T 435748987787,19638537755027,692919372869953,30634679101122821,

%U 1695313841631390713

%N a(n) = A114537(n,n), the (n-1)-fold application of the prime function starting with the n-th nonprime.

%C Found when generalizing Matula numbers to labeled trees.

%F a(n) = prime^(n-1)(A018252(n)) = A114537(n,n).

%e a(3) = prime(prime(A018252(3))) = prime(prime(6)) = prime(13) = 41.

%Y Cf. A018252, A114537.

%K nonn,more

%O 1,2

%A Raul Eduardo Capela Tello Rato (rtrato(AT)yahoo.com), Oct 20 2010

%E a(9)-a(15) from _Robert G. Wilson v_, Mar 07 2017