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A096682
Least k such that decimal representation of k*n contains only digits 0 and 3.
3
3, 15, 1, 75, 6, 5, 429, 375, 37, 3, 3, 25, 231, 2145, 2, 1875, 1959, 185, 1737, 15, 143, 15, 14361, 125, 12, 1155, 12345679, 10725, 113907, 1, 10743, 9375, 1, 9795, 858, 925, 9, 8685, 77, 75, 813, 715, 76821, 75, 74, 71805, 639, 625, 67347, 6, 653, 5775, 5661
OFFSET
1,1
LINKS
FORMULA
a(n) = A078242(n)/n.
KEYWORD
base,nonn
AUTHOR
Ray Chandler, Jul 12 2004
STATUS
approved