837225domain: NAppears in sequencesLeast square base n doublet (written in base 10).at n=12A020340(Terms in A014738)/4.at n=29A051515Square numbers which are the sum of distinct double factorials (A006882).at n=36A115648a(1) = 8; a(n) = 3*a(n-1) + 2*sqrt(2*a(n-1)*(a(n-1)-7)) - 7 for n > 1.at n=7A275151