121792domain: NAppears in sequencesa(n) = min_{k=1..n} (a(k-1) + 2^k*(n + a(n-k))); a(0) = 0.at n=15A006696Expansion of x^2(3+2x)/(1-x-5x^2-3x^3).at n=11A076149Number of ways to partition 2n+1 into distinct positive integers.at n=42A078408Number of ways to partition 4*n+1 into distinct positive integers.at n=21A078409