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A231575
Indices of primes in A001590.
56
4, 5, 7, 9, 25, 29, 49, 79, 1613, 15205
OFFSET
1,1
COMMENTS
a(11) > 2*10^5.
FORMULA
A001590(a(n)) = A231574(n). - Arthur O'Dwyer, 24 Jul 2024
PROG
(PARI) v=[1, 0, 1]; for(n=4, 1e4, if(ispseudoprime(t=v[1]+v[2]+v[3]), print1(n", ")); v=[v[2], v[3], t]) \\ Charles R Greathouse IV, Nov 18 2013
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Robert Price, Nov 18 2013
EXTENSIONS
Name clarified by Arthur O'Dwyer, Jul 24 2024
STATUS
approved