6107270400domain: NAppears in sequencesMagic products of 7 X 7 multiplicative magic squares.at n=25A113027a(1) = 1, a(n) = a(n-1) if n = 1 (mod 3), otherwise n*a(n-1).at n=16A123144a(n) = v(n+1)/v(n), where v=A203430.at n=10A203431Young urn sequence (number of possible evolutions in n steps of the "Young" Pólya urn).at n=11A293653