185904

Appears in sequences

• a(n) = 2*n*A071148(n).at n=35A177082
• p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - 2 S + S^3.at n=13A291414
• a(n) = n! * [x^n] Product_{k>=1} 1/(1 + x^k)^(n/k).at n=6A300188