66923

Properties

Appears in sequences

• Primes from merging of 5 successive digits in decimal expansion of Pi.at n=21A104825
• a(n) = 44*n^2 - 1.at n=38A158628
• Number of (1+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7.at n=12A252680
• Positive integers k such that (k+1)^4 has a divisor congruent to -1 modulo k.at n=48A350916
• a(0) = 3, a(1) = 3, and a(n) = 6*a(n-1) - a(n-2) - 4 for n >= 2.at n=7A350921
• Prime numbersat n=6668