43979

Appears in sequences

• a(n) = (n+1)*a(n-1) + (n+2)*a(n-2) + a(n-3); a(1)=0, a(2)=3, a(3)=13.at n=6A000904
• Number of partitions of n with even number (or 0) 2's.at n=44A092295