1250964

Appears in sequences

• Expansion of 1/(1-3*x)^8; 8-fold convolution of A000244 (powers of 3).at n=6A036221
• a(n) = 3^n*binomial(2*n+1, n).at n=6A098399
• Expansion of e.g.f. BesselI(0,2*sqrt(3)*x) + BesselI(1,2*sqrt(3)*x)/sqrt(3).at n=13A098662