113685domain: NAppears in sequencesNumber of rooted Greg trees.at n=9A052300a(n) = n * [1 + sum(k=1 to n) prime(k)].at n=39A083725Antidiagonal sums of array containing i-bonacci sequences nac(i,n), where nac(i,n) is the n-th i-bonacci number with nac(i,1..i) = 1 (see comments).at n=21A345669