77911domain: NAppears in sequencesNumber of base 11 circular n-digit numbers with adjacent digits differing by 1 or less.at n=10A124704Expansion of (1 + 10*x + 20*x^2 + 10*x^3 + x^4)/(1-x)^5.at n=14A160747Number of nonempty subsets of {2..n} whose product is divisible by their sum.at n=19A326172