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A141132
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a(n) = prime(prime(prime(prime(A028815(n) - 1) - 1) - 1) - 1) - 1.
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6
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1, 2, 36, 576, 1492, 4512, 8110, 14778, 18222, 26416, 41452, 51576, 71740, 87552, 96352, 111372, 135660, 167106, 172152, 218550, 238990, 250252, 284148, 317856, 351706, 400408, 441478, 463398, 490246, 505780, 527280, 643990, 679036, 718182
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = prime(prime(prime(prime(prime(n)) - 1) - 1) - 1) - 1, with a(0) = 1. - G. C. Greubel, Aug 05 2024
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MATHEMATICA
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A141132[n_]:= With[{p=Prime}, If[n==0, 1, p[p[p[p[p[n]]-1]-1]-1]-1 ]];
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PROG
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(Magma)
p:=NthPrime;
A141132:= func< n | n eq 0 select 1 else p(p(p(p(p(n))-1)-1)-1)-1 >;
(SageMath)
p=nth_prime
def A141132(n): return 1 if n==0 else p(p(p(p(p(n))-1)-1)-1)-1
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CROSSREFS
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KEYWORD
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nonn,changed
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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