14073345

Appears in sequences

• Expansion of 1/(1-3*x)^5; 5-fold convolution of A000244 (powers of 3).at n=9A036217
• Expansion of 1/(1-3*x)^9; 9-fold convolution of A000244 (powers of 3).at n=7A036222
• a(n) = (n-1)*(n-2)*(n-3)*(3*n-10)*3^(n-5)/4.at n=11A086864
• a(n) = 3^n*binomial(2*n+1, n).at n=7A098399
• Expansion of e.g.f. BesselI(0,2*sqrt(3)*x) + BesselI(1,2*sqrt(3)*x)/sqrt(3).at n=15A098662