57015domain: NAppears in sequencesExpansion of 1/((1-x)(1-5x)(1-6x)(1-11x)).at n=4A022412Decimal part of a(n)^(1/5) starts with a 'nine digits' anagram.at n=30A034280a(n) = 24*A138879(n) - A187219(n).at n=18A183012The hyper-Wiener index of the odd graph O_n (n>=2).at n=3A228309