

A117326


Indices of semiprimes in A117322 prime(n) modulo semiprime(n).


0



13, 17, 18, 20, 21, 27, 28, 30, 32, 41, 42, 43, 46, 47, 49, 53, 55, 56, 58, 59, 63, 69, 72, 75, 81
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OFFSET

1,1


LINKS



EXAMPLE

a(1) = 13 because A117322(13) = prime(13) modulo semiprime(13) = 41 mod 35 = 6 = 2 * 3 is semiprime.
a(2) = 17 because A117322(17) = 59 mod 49 = 10 = 2 * 5 is semiprime.
a(3) = 18 because A117322(18) = 61 mod 51 = 10 = 2 * 5 is semiprime.
a(4) = 20 because A117322(20) = 71 mod 57 = 14 = 2 * 7 is semiprime.


CROSSREFS



KEYWORD

easy,nonn


AUTHOR



STATUS

approved



