27333

Appears in sequences

• Numbers k such that 231*2^k+1 is prime.at n=47A032492
• Numbers n such that 6^n+5 is prime.at n=23A145106
• Last term where no prime sums occur in A161190 in a 4-diagonal set of 24 terms.at n=15A161193
• Number of 5-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and first and second differences in -n..n.at n=23A209009
• Concatenate n-th composite number with concatenation of its prime factors in ascending order.at n=16A245315
• Relative of Hofstadter Q-sequence: a(n) = max(0, n+27298) for n <= 0; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 0.at n=32A283888
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2 or 3 king-move adjacent elements, with upper left element zero.at n=13A303722
• a(n) is the smallest k such that k!'s prime(n)-smooth part is less than its prime(n+1)-rough part.at n=37A360316
• Number of 4 element sets of distinct integer sided rectangles that fill an n X n square.at n=37A387171