66894

Appears in sequences

• Numbers n such that n^2048 + 1 is prime (a generalized Fermat prime).at n=30A088361
• Expansion of Sum_{k>=0} x^(2*k)/Product_{j=1..k} (1 - j*2*x).at n=11A119429
• Number of (n+2) X (4+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=19A252380