57228domain: NAppears in sequencesGlaisher's function U(n).at n=17A002612a(1) = 6; a(n+1) = (a(n)+1)/2 if a(n) odd, or 5*a(n)/2 if a(n) even.at n=38A070870The permanent of an n X n symmetric Toeplitz matrix M(n) whose first row consists of n, n-1, ..., 1.at n=4A307783