436320

Appears in sequences

• a(n) = 9*8*7*6*5*4*3*2*1 + 18*17*16*15*14*13*12*11*10 + ... + (up to the n-th term).at n=12A319873
• G.f. satisfies A(x) = 1 + x^3 + x*A(x)^4.at n=8A367043