A096684 Least k such that decimal representation of k*n contains only digits 0 and 5.

5, 25, 185, 125, 1, 925, 715, 625, 61728395, 5, 5, 4625, 385, 3575, 37, 3125, 3265, 308641975, 2895, 25, 2405, 25, 23935, 23125, 2, 1925, 203909465, 17875, 189845, 185, 17905, 15625, 16835, 16325, 143, 1543209875, 15, 14475, 1295, 125, 1355

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Formula

a(n) = A078244(n)/n.

Crossrefs

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

Sequence in context: A047897 A204461 A121144 * A265184 A096245 A294363

Adjacent sequences: A096681 A096682 A096683 * A096685 A096686 A096687

Keyword

base,nonn

Author

Ray Chandler, Jul 12 2004

Status

approved