a(n) = lcm(4n, A025586(4n)), least common multiple of 4n and the largest value in 3x+1 iteration list started at 4n.

A087261

a(n) = lcm(4n, A025586(4n)), least common multiple of 4n and the largest value in 3x+1 iteration list started at 4n.

Terms

    a(0) =4a(1) =8a(2) =48a(3) =16a(4) =20a(5) =24a(6) =364a(7) =32a(8) =468a(9) =40a(10) =572a(11) =48a(12) =52a(13) =56a(14) =480a(15) =64a(16) =68a(17) =72a(18) =1672a(19) =80a(20) =84a(21) =88a(22) =3680a(23) =96a(24) =100a(25) =104a(26) =249264a(27) =112a(28) =116a(29) =480

External references