27663

Appears in sequences

• G.f.: 1 / (1 + x + Sum_{k>=2} prime(k-1) * x^k).at n=49A346792
• Semiprimes k such that k is congruent to 3 modulo k's index in the sequence of semiprimes.at n=6A357807
• Consecutive states of the linear congruential pseudo-random number generator (2041*s + 25673) mod 121500 when started at s=1.at n=34A385362
• Numbers k such that 16 * 3^k + 1 is prime.at n=27A387060