60087domain: NAppears in sequencesa(n) = floor(binomial(n,7)/8).at n=25A011844a(1) = 1, a(n) = a(n-1)*n if n is a prime, a(n) = a(n-1)+ n if n is composite.at n=13A083524Number of length 4+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=13A247536