303651domain: NAppears in sequencesa(n) = n^4 - 10n^3 + 35n^2 - 48n + 23.at n=25A137864Numbers n such that n, n+1, n+2 are all of the form p*q^2 for distinct primes p,q.at n=26A178032Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 5).at n=30A212364