A057827 a(0) = 1; a(n) = LCM(n, sum{k=0 to n-1}[a(k)]).

1, 1, 2, 12, 16, 160, 192, 2688, 3072, 18432, 122880, 1622016, 1769472, 46006272, 49545216, 495452160, 594542592, 20214448128, 21403533312, 813334265856, 856141332480, 1712282664960, 37670218629120, 945180031057920

Offset: 0

Author

Leroy Quet, Nov 08 2000

Keywords

• nonn

Examples

			a(4) = LCM(4, a(0)+a(1)+a(2)+a(3)) = LCM(4, 1+1+2+12) = LCM(4, 16) = 16.