101754domain: NAppears in sequencesa(n)=a(n-1)+a(n-2)-d, where d=a(n/5) if 5 divides n, else d=0; 2 initial terms.at n=25A050195Matrix inverse of triangle A136501, read by rows.at n=31A136502Number of ways to write n as an ordered sum of 9 nonprime numbers.at n=29A341486