343120

Appears in sequences

• a(n) = Sum_{k=0..floor(n/4)} C(n-2k,2k) * 3^k * 2^(n-4k).at n=14A100133
• G.f. is Q_0(q) where Q_0(q^4) is a series quadrisection of the g.f. of A161800.at n=19A161801