229662domain: NAppears in sequencesNumbers n such that A112131(n) is a Harshad number and sets a new record for number of digits.at n=16A109463Number of distinct values taken by 5^5^...^5 (with n 5's and parentheses inserted in all possible ways).at n=15A145545a(n) = 972*n^2 - 1224*n + 414 with n > 0.at n=15A304166