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A079838
a(1) = 1 and then smallest multiple of a(n) which has no nonzero digit in common with a(n).
0
1, 2, 4, 8, 16, 32, 64, 128, 640, 1280, 6400
OFFSET
0,2
COMMENTS
The sequence is infinite and the pattern is visible after a(7): a(2n) = 2*a(2n-1) and a(2n+1) = 5*a(2n) n > 3.
CROSSREFS
Cf. A079839.
Sequence in context: A264791 A290851 A290670 * A109912 A079845 A278995
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Feb 15 2003
STATUS
approved