66480

Appears in sequences

• Numbers whose base-3 representation has exactly 11 runs.at n=10A043591
• Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10.at n=30A043816
• Numbers k such that 2*k! + 1 is prime.at n=20A051915
• Intersection of A108027, A108028, A108029 and A108030.at n=25A108109
• Number of length 1+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third.at n=39A248462