742197

Appears in sequences

• Exactly 6 digits from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a prime.at n=27A032696
• Expansion of x*(x^4 - x^3 + 4x^2 - 3x + 1)/(1 - 5x + 9x^2 - 8x^3 + 2x^4 - x^5).at n=15A111110