278250domain: NAppears in sequencesNumber of compositions of n into 6 ordered relatively prime parts.at n=29A023031a(n) = (n+6)*(n+1)*(n^2 + 7*n + 16)/4.at n=30A168538Number of length 1+4 0..n arrays with some pair in every consecutive five terms totalling exactly n.at n=12A246893