189620

Appears in sequences

• Expansion of (4 + 15*x - 35*x^2 + 20*x^3 - 2*x^5)/(1 - x)^5.at n=34A257600
• a(n) = (n^4 + 20*n^3 + 125*n^2 + 250*n + 24)/12.at n=34A257601
• Numbers k such that k * 19^k - 1 is prime.at n=5A299382