A078243 Smallest multiple of n using only digits 0 and 4.

4, 4, 444, 4, 40, 444, 4004, 40, 444444444, 40, 44, 444, 4004, 4004, 4440, 400, 44404, 444444444, 44004, 40, 40404, 44, 440404, 4440, 400, 4004, 4404444444, 4004, 4404404, 4440, 444044, 4000, 444444, 44404, 40040, 444444444, 444, 44004, 40404

Offset

1,1

Comments

a(n) = min{A169967(k): k > 1 and A169967(k) mod n = 0}. [Reinhard Zumkeller, Jan 10 2012]

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..998

Prog

(Haskell)
a078243 n = head [x | x <- tail a169967_list, mod x n == 0]
-- Reinhard Zumkeller, Jan 10 2012

Crossrefs

Cf. A004290, A078241-A078248, A079339, A096681-A096688.

Sequence in context: A107052 A000790 A068556 * A024246 A358199 A024247

Adjacent sequences: A078240 A078241 A078242 * A078244 A078245 A078246

Keyword

base,nonn

Author

Amarnath Murthy, Nov 23 2002

Extensions

More terms from Ray Chandler, Jul 12 2004

Status

approved