43694

Appears in sequences

• Expansion of (1+4x+x^2-10x^3)/((1-x)(1-x-2x^2)).at n=14A093380
• a(0)=1, a(n)= 2+2^n/6+4*(-1)^n/3, n>0.at n=18A173197
• G.f.: A(x) = (1 + 21*x + 3*x^2 - x^3)/(1-x)^5.at n=13A183066
• Numbers n such that n!3 - 3 is prime, where n!3 = n!!! is a triple factorial number (A007661).at n=34A242994
• Numbers k such that 6*10^k + 91 is prime.at n=31A265938