70873domain: NAppears in sequencesNumber of terms in 5th derivative of a function composed with itself n times.at n=32A022815Number of trees with n nodes and 5 leaves.at n=24A055292a(n+4) = floor( ( a(n) + 2*a(n+1) + 3*a(n+2) + 4*a(n+3) )/5 ), with a(0), a(1), a(2), a(3) equal to 0, 1, 2, 3.at n=30A074733